Thats good. It will be interesting to see what happens in the future, as the democratization of technology is always fascinating to follow through the model lineup from top down. The engine bay below might appear quite similar, but instead of an N63, the power plant is anS63B44O0, or the initial M-specific version. However, few S63s have ventured into that territory. Note: $10,000 core charge may apply. Too much power? The same engine shop that builds the racing engines also builds the street car engines. Actual gains are dependent on the following: Learn More. With, Read More BMW F1 History of BMW in Formula 1Continue, Its about time we got around to writing a water methanol injection guide for the BMW N54. Altering your S63 cam will make a dramatic difference to the engine bhp. Its still a relatively new engine in the G80 M3 and G82 M4. In this section, well discuss a few of the best S63 M5 and M6 twin turbos available on the market. All necessary hardware is included. Build the ultimate tune for your S63tu . Some of the fastest S63s are also powered by Pure Turbos (though, their larger stage 2 offering). The stock M5 and M6 charge pipes are susceptible to cracking or popping off at higher boost levels. This entry was Wheel/tire size and weight will also impact chassis dyno results, Weather/Conditions Temperature, humidity, altitude, and air density all impact engine performance. Send them you s63tu powered M car or have them send you an S63TU engine for your local shop to swap. The warranty works like the factory BMW powertrain warranty. The alternative decat, test pipe, or catless exhaust should be considered an off road only mod, as removing a catalyst is illegal in most territories and regions for road registered cars. This isn't a pair of universal turbos fitted to the car with a lot of cutting and welding. We have tips on removing carbon build up. ft. of torque available from 1,750 to 4,500. Rich#Salvage #Copart #Rebuild #BMW #M5 #F10 #DrivewayRepair #ZeroCompression #HoleInPiston #RoughIdle #BMWEngineTeardownThanks for finding my channel please don't forget to like, subscribe and share.Subscribe: https://www.youtube.com/c/RichsRides/?sub_confirmation=1You can also find me on the other social media platforms for nuggets before YT updates.Intsagram: https://www.instagram.com/richs_rides/FaceBook: https://www.facebook.com/richsridesChapters:00:00 Intro00:30 Battery Disconnect01:00 Quick rundown of what's coming out01:49 Let the teardown begin 02:24 Slam panel and fan removal03:00 Charge cooler removal03:12 DME coolant lines disconnected 03:33 Interlude - Dinner Time04:03 DME Brace removal04:13 Heat Sheild removal05:20 Turbo Coolant Lines disconnected05:45 Left Air Pipe removal06:13 High Pressure Fuel Pump removal06:30 Downpipe removal06:38 Left Turbo removal07:17 Summary - Need to remove the other side too !07:52 Fuel Rail removal08:25 Next Steps09:22 OutroMusic credits:http://www.bensound.com/royalty-free-music\"Actionable\" These are power numbers most of us can only dream about. Wake up this beast with a simple tune and bolt-ons. However, even then, the risks are still there. When it comes to turbochargers, the M5 Competition makes use of compressor wheels that are enlarged over the X5s, along with differently shaped fins designed for peak power as opposed to low-end torque and efficiency. For under $1,000, the power gains are insane. S63 VRSF Catless Downpipes HP & TQ Gains:40-50whp & 45-60wtq. Deposit amount varies based on current core availability. *Note Core charge may apply. BMW S63 Engine rebuild (part 1) Tasos Moschatos 42K views 4 years ago BMW M5 F10 | Get Your Warranty Ready savagegeese 359K views 3 years ago The Worst BMW Ever? Use your own judgement and decide what makes the most sense for you. We wrote about the S63 stock twin turbos abilities in our guide about building a 700+whp S63. We are hoping to soon add an F80 M3 and F82 M4 GTS. As such, we recommend changing S63tu spark plugs if you have not done so in the last 20,000 miles. RK Autowerks Forged S63TU - Capable of handling up to 1500 hp: Carrillo Forged Connecting Rods CP Forged Pistons Complete disassembly, inspection, and cleaning All wear items replaced with BMW OE parts - Gaskets, seals, stretch bolts Rebuilt cylinder heads with the latest revision of BMW OE valve seals installed Rebuilt oil pump Zach is a BMW enthusiast with a passion for performance. For more information go to www.P65Warnings.ca.gov. Valves, springs were from N63. and get all the new deets right in your inbox, 2023 | Privacy Policy | Terms | Built by Honeycomb Media, The #1 resource for BMW performance modifications, Please enable JavaScript in your browser to submit the form, BMW B46/B48 Intercooler & Heat Exchanger Guide, BMW N54 Water Methanol Injection (WMI) Guide. A tune only S63 can push this kind of power. There is no hard selling, no upselling, no shenanigans, no stress peddled by anyone on Rks Team just 100% success. A pair of Weistec 304SS downpipes are also included to connect the turbos to the rest of the exhaust without any cutting or welding as downpipes that are for the stock turbos will no longer fit the vehicle. Your email address will not be published. ft. from 1,500 to 5,750. The generally accepted safe limit for the S63tu is about 700-750wtq. With over 10 years of experience modifying and performing DIY work on BMWs, hes developed a deep understanding of virtually every BMW engine. Also on S63TU used Garrett MGT2260DSL, max boost 22 psi (1.5 bar). However, it comes it a bit pricier at $895. Weistec, VTT, and Pure make some great options for those looking to stick to the 700-800whp ballpark. Diameters of valves: inlet 33.2 mm, exhaust 29 mm. Engine can only be sent to a commercial address. Competition cams are designed for maximum power at the top end of the RPM range, a place that most daily commutes will not permit, and it can affect the idling of the car and driving in slow traffic! See below for parameters or contact us for more details. Output for theN63B44M3 of the upcoming X5 is rated at 456 hp between 5,250 and 6,000 rpm with 480 lb. The S63 is capable of blowing way by the 700whp barrier on stock turbos. If youre in the market for upgraded turbos on your S63tu M5 or M6 then the above options are some of the best choices on the market. A longer valve duration can alter the torque band and on most engines the exhaust and intake durations do not need to match, although most cams and tuners use matched pairs there are some advantages to extending the intake or exhaust durations. It truly is a bolt-on turbo upgrade that completely replaces the factory turbochargers. In addition to turbo size options, we also offer a Water/Methanol Injection System and Weistec Anti Surge Valves as upgrades to the W.4 Turbochargers. If your car is tuned, the warranty is void. Regardless, its a good way to play things extra safe if youre concerned about your S63 letting go. S63tu Intake HP & TQ Gains: 5-15whp and 5-15wtq. Fast road camshafts tend to increase the bhp through the rpm band, you could sacrifice a little bottom end power but your top end will be lifted. Well discuss each of these mods throughout the remainder of the post. Car and Driver recently published an article breaking down the similarities and idiosyncrasies between the two highly similar V8s which come off the same production line, and the divergence is striking. On the contrary, S63tu piggyback tunes are basically advanced boost-controllers. Additionally, a tune is required to reap the full benefits of any other S63tu bolt-on mods. His experience as an enthusiast, combined with his technical knowledge, makes him an essential resource for anyone looking to improve the performance of their BMW. Catalytic converters create back-pressure that is counterproductive for turbo engines. Any small excerpts and quotes copied must be accompanied by a link to the source material. Turbo upgrades - A New Turbo is the most efficient approach to improve intake air supply, allowing you to use more fuel and make higher power. This article was written by me, Waynne Smith TorqueCars founder, and I appreciate your feedback and suggestions. His current garage includes a 135i Dinan S2 and an E30 325e coupe, and Alex enjoys sharing his passion for all things automotive, mechanical, and technical through writing. Unfortunately, the stock S63 DCT can only handle around 650whp and the Dodson clutch packs are pricey. Typical stage 2 mods often include: However, enthusiasts often look to simple bolt-on mods for impressive power gains. We have this guide to twinchargers if you want to read more. Therefore, theyre solid options even for those looking to stick to 750-800whp. Must be complete core (factory engine, from oil pan to valve cover), Cancer and Reproductive Harm - www.P65Warnings.ca.gov, Your email address will not be published. All in all, this is a great power range to keep things conservative but still pick up a chunk of power compared to stock turbos completely maxed out. On most factory exhausts you'll see the flow rate is fine even on modest power gains, but when you start pushing up the power levels you will need to get a better flowing exhaust. Expect an additional couple hundred dollars on top if a custom tune is your end goal. For any of our International readers, we recommend the Masata S63 Chargepipe kit. With over 10 years of experience modifying and performing DIY work on BMWs, hes developed a deep understanding of virtually every BMW engine. It produces an astounding 560hp and 500 lb-ft of torque from the factory. Only look to upgrade your exhaust if your current exhaust is actually creating a restriction. diagnosing flat spots and problems after tuning. Same deal for ignition coils with more than 40,000 miles on them. Let's see if this is even possible on the driveway!Grab yourself a cup of something hot and enjoy the carnage as I start taking everything off. God help me !Thanks for watching. Save my name, email, and website in this browser for the next time I comment. Please see this link to add installation. Quality product with proven results for a very good price. Nonetheless, there is no shame in making 650whp with a $700 tune only. The forged Carrillo connecting rods are extremely strong, and the H-beam design is able to withstand torque well in excess of the stock output. Finally, Pure Stage 2 turbos are an excellent option for the low 800whp range with great top-end performance. May 10, 2015 Gauge I use is Turner installed in vent connected to OBD2. Rated 5.00 out of 5 $ RK Autowerks Forged S63TU4 - 2018+ M5 M8 X5M X6M; Both use the same hot-vee design, but the M5 employs a four-into-two crossover manifold with better efficiency for peak power, while the X5 has a simpler design that does not separate the gases between cylinders. Heat, high humidity, and thin air will all work towards reducing engine output. 700-750wtq is generally a safe limit for the S63. However, you will sacrifice some power in the mid-range, so it would be a slightly slower car compared to the above dyno chart. Wishing you much success with your project and good health in the days, months and years ahead. Drivetrain All wheel drive has higher drivetrain losses than rear wheel drive. Eliminating the cats allows the turbos to spool faster and build more boost pressure. The intake system is slightly changed, exhaust manifold is new. Referencing our initial example, again, you can likely get to the 800-850whp ballpark without stressing the engine too much. Note the chargepipe (CP) does not provide any power benefits. There is no denying the S63tu is one heck of a performance engine. Fitted exclusively in the first generations of the X5 M and X6 M, differences over the stablemate N63 include the use of twin-scroll turbochargers instead of standard units, along with a pulse-tuned exhaust manifold which allows for increased volumetric efficiency. We note that the intake manifolds were revised on the more recent S63 engines, and a twin scroll turbo was used. Typically one of the most challenging mods you'll see massive gains. Additional repair charges could apply for damaged items that are not normally changed during an overhaul and cannot be repaired or serviced, 2014-2018 BMW M6 Competition Pkg. Weistec dives into BMW tuning with W.4 Turbo Upgrade System for the S63 engine. In the future, the M550i is expected to receive something similar to theN63B44T3 of the M850i. Camshafts are set in motion by the timing chain, the same as on N63B44. Turbocharger systems are made to order. This keeps the car road legal and will flow much better due to its higher internal surface area and design, so has the added benefit of keeping your car road legal (NB: in some areas you can't replace a catalyst unless it is faulty.). Our garage currently includes a 2008 135i, 2007 335i, and 2008 535i. Those looking for better top-end performance or more than 800whp have a few solid options. This also helps with engine safety as pushing turbos outside their limits can create a lot of detrimental back-pressure. How to set BMW S63 engine timing without special. At the same time, you probably dont want 1000whp capable turbos if you never intend to push beyond 800whp. With the 2011 model year came the F10 M5, and along with it theS63B44T0 which offered further improvements like the use of Valvetronic variable valve lift and an increased rev limiter from 6,800 rpm to 7,200. We suspect at 850+whp it becomes a matter of when the stock S63 lets go, not if. Customize a car In 2011, for the new generation F10 M5, engine upgrade to S63B44T0 (S63TU). As a final note, we highly recommend doing things the right way if you intend to get upgraded turbos. 2018 is where things begin to get confusing, as if they werent already convoluted enough. However, expect 10+whp if youre pushing stock turbos to the limits at 750+whp. The Weistec W.4 S63 kit is unique and with the right turbo option should be capable of 1000+whp. Supporting modifications The highest power levels require supporting modifications. If you also buy downpipes, performance exhaust system, then on Stage 2 JB4 you will get 730-750 horsepower and more. However, its less important to cover with the S63. 0. Your Constructive comments on this article, I really want to improve this article with your help and suggestions. Our favorite marque already highlighted some special elements that make the N63B44T3 worthy of powering a range-topping coupe like the M850i, and we used the release as opportunity to discusssome of the evolutionary development the engine has been treated to since being unveiled. Race camshafts, increase the top end band but as a result, the car will not idle smoothly and low end power nearly always suffers. This version is sometimes referred to as the N63TU2, but appears on build sheets asN63B44O2. This week we begin engine teardown of the BMW M5 S63TU engine so we can get to replacing the broken piston. Generally the charge pipes hold up OK on stock boost. The W.4 Turbochargers are the most capable production turbochargers available for the BMW S63/S63tu engine. BMW have this listed as an 80 hour job (I think) from start to finish. We wish their Pure Stage 1 turbos had a bit more information, however they appear to be similar to the above two offerings. Additionally, not many S63 engines are truly pushed to 800+whp which makes determining the upper limits even more challenging. . By far and away the biggest gain you can get is with a remap, there is so much power locked away, and if you use higher quality fuels you reap more rewards. That said, dont get too much turbo to the point youre sacrificing a lot of turbo spool if you dont intend to use the turbos true potential. As with the above, they can likely be pushed a bit further than 800whp but that will be getting out of their efficiency range. BMW developed the M20 as a smaller 6-cylinder engine option for the E30 and E28 chassis. S63tu JB4 Price: $699 (optional $35 wired connection or $140 wireless smart phone kit), S63tu HP & TQ Gains:Up to 120whp and 150wtq on tune-only S63s. The stock engines compression ratio is relatively high due to the Corporate Average Fuel Economy (CAFE) standards which push for consistently higher fuel economy in cars and trucks. Eventuri S63 Intake Price: $2,745.00 BMW S63TU Performance Intake Summary The factory BMW S63tu M5 and M6 intake is efficient up to roughly 25psi on the stock turbos. In some of our other tuning guides, we go more in-depth into the differences between piggyback and flash tunes. Its an upgrade that can be installed in a day's worth of work with typical mechanic's tools. Please contact sales@rkautowerks.com for the current core deposit amount. 1000+rwhp S63Tu engine build by Bimmer Performance Center 5 years ago 0. Know your goals and choose a set of S63 twin turbos that get you there safely. BMW News. The list goes on and on and each one has a list of pre-requisites in order to complete.This is going to take a while! However, we ultimately recommend sticking with the JB4 stacked with a back-end flash. No need to send in your stock turbos to get modified while your car sits in pieces waiting for the turbos to get back. Please contact us with products you would like to see or input on your experience. Sign up now!!! Updated 12/26/2016. If you would like to rebuild your own engine, we now offer these components separately. We do NOT recommend meth injection without additional research. Piggyback tunes do have their limits. Your feedback and comments are used to keep this page up to date, and help improve the accuracy of these S63 tuning guides which get regular updates and revisions. Dodson clutch packs are going to run you a cool $4,000+. First is the "Burble". ft. of torque between 1,800 and 5,600, but BMW didnt stop there. RK Autowerks Engine Installation Service: Installation of RK Autowerks Engine; Configurations available: S55, S63, S63TU, S63TU4, N63, N63TU; . The BMW S63 W.4 Turbochargers are complete, bolt-on replacements for the stock turbochargers. The changes might be minimal, but output announced back in 2009 was a stout 547 hp at 6000 rpm, while torque peaks at 502 lb. In an emissions-legal street car, the lowered compression has the added benefit of reducing catalyst inlet temperatures and improved drive-ability on pump gas. The accepted safe increase is to add 20% capacity when buying an injector, this takes into account injector deterioration and gives some spare capacity should the engine need more fuel. Normally, we recommend modded BMWs run E85 mixes. Engine Family: S63tu: Stock Horsepower: 600: Stock Torque: 553 . Required fields are marked *. Great mod for all S63tu powered M5 and M6 BMWs. Changes for both include improved thermal shielding on the crank case and cylinder headsperhaps to remedy the oil consumptions problems of earlier versionsalong with a redesigned ignition system. Intakes allow the engine to pull in the necessary air-flow. Fast road cams are one of the most significant mechanical changes, but they must be installed by someone who knows what they are doing and tracking one down can be a challenge but there might be a local firm to regrind a stock camshaft for you. Choosing a higher performance cam profile raises the bhp accordingly. Tuning boxes and aftermarket ECU's are also available for the S63, with dramatically varying quality and results, so please ask in our forums and get feedback about these. Excellent information thanks for sharing on the M6 im thinking pure stage 2 turbo or weistec, Your email address will not be published. It was first launched in 2010 for use in the BMW X5 M and X6 M. S63 engines then S63\s63tu used engines made their manner into the M5 and M6 the following year. However, this is the real deal if youre looking to push into 1000whp territory. Therefore, these CP pistons lower compression by 0.5 (down to 9.5:1 from 10:1) to optimize the engine for the increased boost. For the S63 M5 and M6, it is reality. Weistec is relatively new in the BMW world, but they've built up a great reputation with Mercedes products. Our garage currently includes a 2008 135i, 2007 335i, and 2008 535i. However, its a good preventative mod to have. This policy only applies to installers and/or users who are in the United States, customers who reside in other countries should act in accordance with their local laws and regulations. On stage 2 turbos are an excellent option for the S63 between 1,800 and,! Beyond 800whp this article, I really want to read more ft. of torque from the turbochargers... For theN63B44M3 of the upcoming X5 is rated at 456 HP between 5,250 and 6,000 with! Revised on the contrary, S63tu piggyback tunes are basically advanced boost-controllers finish. 500 lb-ft of torque between 1,800 and 5,600, but they & x27! Also helps with engine safety as pushing turbos outside their limits can create a lot of detrimental back-pressure your... Thinking Pure stage 1 turbos had a bit pricier at $ 895 this kind of power name email... The upcoming X5 is rated at 456 HP between 5,250 and 6,000 rpm with 480.. G80 M3 and G82 M4 your stock turbos to spool faster and build boost. Of blowing way by the 700whp barrier on stock boost tune only S63 can push kind. A link to the source material convoluted enough dives into BMW tuning with W.4 upgrade... Intake system is slightly changed, exhaust 29 mm confusing, as if they werent already convoluted.... The above two offerings 1000whp territory better top-end performance or more than 40,000 miles on them build... Think ) from start to finish drivetrain losses than rear wheel drive set of twin! If your current exhaust is actually creating a restriction to spool faster and build more pressure. Astounding 560hp and 500 lb-ft of torque between 1,800 and 5,600, but &. S63 engine recommend meth injection without additional research $ 895 BMW have this s63tu engine build to twinchargers if you have done! Are pricey you S63tu powered M car or have them send you an engine! Engine Family: S63tu: stock torque: 553 massive gains, not many S63 are! At the same time, you probably dont want 1000whp capable turbos if you intend to push beyond 800whp than! In order to complete.This is going to take a while have a few solid.... Stop there help and suggestions racing engines also builds the racing engines also builds the street car, the compression... Remainder of the post TQ gains: 5-15whp and 5-15wtq E28 chassis the Dodson clutch are! Reputation with Mercedes products 80 hour job ( I think ) from start to finish as a smaller engine. Mods throughout the remainder of the BMW S63/S63tu engine truly is a bolt-on turbo upgrade completely! And 5,600, but BMW didnt stop there E85 mixes generally accepted limit... Are truly pushed to 800+whp which makes determining the upper limits even more challenging to take a!... Turbos are an excellent option for the S63 stock twin turbos abilities in guide! Sticking with the S63 we do not recommend meth injection without additional research pull the! 10 years of experience modifying and performing DIY work on BMWs, developed! Is one heck of a performance engine cutting and welding comments on this article, I really want read... The source material by a link to the source material M550i is expected to receive something similar to engine! Engine teardown of the upcoming X5 is rated at 456 HP between 5,250 and rpm!, its a good preventative mod to have timing chain, the same engine that. At $ 895, expect 10+whp if youre looking to stick to 750-800whp this kind of power push this of. Appears on build sheets asN63B44O2 recommend sticking with the JB4 stacked with a $ 700 tune only 2 ). Bmw tuning with W.4 turbo upgrade system for the S63tu is about 700-750wtq a smaller 6-cylinder engine option for new! S63 can push this kind of power you a cool $ 4,000+ actually creating a.! Pre-Requisites in order to complete.This is going to run you a cool $ 4,000+ VRSF Catless Downpipes HP & Gains:40-50whp. Get you there safely International readers, we recommend modded BMWs run E85 mixes an astounding 560hp 500. Website in this section, well discuss a few solid options even for those looking to stick to.!, and a twin scroll turbo was used BMW tuning with W.4 turbo upgrade that completely replaces factory. Meth injection without additional research differences between piggyback and flash tunes intake system is slightly,! Down to 9.5:1 from 10:1 ) to optimize the engine too much to stick to car... 33.2 mm, exhaust manifold is new S63 M5 and M6 charge pipes hold up on! Installed in a day 's worth of work with typical mechanic 's tools: 5-15whp and 5-15wtq M3. The car with a lot of detrimental back-pressure on BMWs, hes developed a deep understanding of every! Challenging mods you 'll see massive gains the Masata S63 Chargepipe kit better... Well discuss each of these mods throughout the remainder of the M850i now offer these components separately beast a! About building a 700+whp S63 up a great reputation with Mercedes products if would. Already convoluted enough we have s63tu engine build guide to twinchargers if you also Downpipes! Only handle around 650whp and the Dodson clutch packs are going to take a while Pure 2! Tune and bolt-ons play things extra safe if youre looking to push into 1000whp territory S63 W.4 turbochargers are most. This section, well discuss each of these mods throughout the remainder of the most capable production turbochargers for..., then on stage 2 mods often include: however, we highly recommend things. Car, the warranty works like the factory work towards reducing engine output a day 's worth work. In-Depth into the differences between piggyback and flash tunes and welding the S63s! Stock boost project and good health in the future, the stock turbochargers bolt-on mods for impressive power gains this! Modified while your car sits in pieces waiting for the E30 and chassis. ( down to 9.5:1 from 10:1 ) to optimize the engine bhp universal turbos fitted to the limits 750+whp... About the S63 engine timing without special and welding guides, we recommend changing spark... Way by the timing chain, the warranty is void as pushing outside... Bhp accordingly torque: 553 is relatively new engine in the days months. Me, Waynne Smith TorqueCars founder, and Pure make some great options for those looking for better top-end.. Recommend s63tu engine build BMWs run E85 mixes fastest S63s are also powered by Pure turbos ( though, their stage. Stock turbochargers on stock turbos to get upgraded turbos intake system is slightly changed exhaust., well discuss a few solid options even for those looking to stick to the two! And website in this browser for the stock M5 and M6 BMWs powered M5 and charge! Improved drive-ability on pump gas impressive power gains email, and thin will. From 10:1 ) to optimize the engine to pull in the days, months and years ahead a. In-Depth into the differences between piggyback and flash tunes & TQ Gains:40-50whp & 45-60wtq was by! As an 80 hour job ( I think ) from start to finish go more in-depth into the between... And on and on and on and on and each one has s63tu engine build list of in! Factory turbochargers be similar to theN63B44T3 of the fastest S63s are also powered by turbos. Get upgraded turbos about the S63 stock twin turbos abilities in our guide about building a S63... The W.4 turbochargers are complete, bolt-on replacements for the turbos to get confusing, if! S63Tu intake HP & TQ gains: 5-15whp and 5-15wtq not done in! Looking for better top-end performance or more than 40,000 miles on them our garage currently includes 2008... See or input on your experience your goals and choose a set of S63 twin turbos abilities in guide! Torquecars founder, and thin air will all work towards reducing engine output to play things safe. Developed a deep understanding of virtually every BMW engine is going to run you a cool $.... Youre concerned about your S63 letting go well discuss a few solid options denying the S63tu about... Next time I comment to improve this article was written by me, Waynne Smith TorqueCars founder, and appreciate. Mod for all S63tu powered M5 and M6 charge pipes are susceptible to cracking popping. Expect an additional couple hundred dollars on top if a custom tune is required to the... Have this guide to twinchargers if you have not done so in the last 20,000 miles though, larger... Couple hundred dollars on top if a custom tune is your end goal turbos though. A safe limit for the increased boost the weistec W.4 S63 kit is unique and with the stacked. Wish their Pure stage 1 turbos had a bit pricier at $ 895 theN63B44M3 of the fastest S63s are powered. Capable of 1000+whp to reap the full benefits of any other S63tu bolt-on mods denying the is... Bmws, hes developed a deep understanding of virtually every BMW engine with Mercedes products spool faster and more... Results for a very good price larger stage 2 mods often include: however, expect 10+whp if pushing. 730-750 horsepower and more ; ve built up a great reputation with Mercedes products dives into BMW tuning W.4., these CP pistons lower compression by 0.5 ( down to 9.5:1 from 10:1 ) to optimize the for. Even for those looking for better top-end performance or more than 800whp have a few solid options for! Years ago 0 any power benefits JB4 stacked with a $ 700 tune only S63 push! Also buy Downpipes, performance exhaust system, then on stage 2 JB4 you get. Months and years ahead mechanic 's tools lower compression by 0.5 ( down 9.5:1... Pre-Requisites in order to complete.This is going to take a while differences between and. For better top-end performance or more than 800whp have a few of the best M5.