BMW M4 Competition With 640-HP Upgrade Is A M5 CS Killer

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Whether you like the new looks or not, the M4 is a beast.

It's been close to a year since the reveal of the all-new BMW M4 Coupe and this has given tuners time to develop both body kits and performance-enhancing upgrades. Manhart has already revealed its tuning package for the new M3 and M4 twins and more recently, AC Schnitzer revealed its body kit for the M4. German tuner RaceChip has also been hard at work on the rear-wheel-drive M4 Competition and they've come up with a tuning package that improves outputs to a heady 640 horsepower and 553 lb-ft of torque from the 3.0-liter turbocharged inline-six S58 engine. That is some serious muscle.

RaceChip/YouTube
RaceChip/YouTube
RaceChip/YouTube

To put those numbers into perspective, the base M4 makes 473 hp and 406 lb-ft and the stock M4 Competition generates 503 hp and 479 lb-ft. RaceChip's tune makes its M4 Competition more powerful than the M5 CS, the most powerful car BMW currently makes, and equals its torque figure. The dyno test showed that the stock M4 Comp made 534 hp and 494 lb-ft, an improvement over BMW's claims and not the first time BMW has underrated one of its M cars. After a stop at the dyno station, the RaceChip team took this upgraded M4 Comp for a blast and were blown away by the manner in which the standard chassis and brakes remained composed despite the massive increase in power.

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RaceChip/YouTube
RaceChip/YouTube
RaceChip/YouTube

The strong dynamic performance bodes well for future, high-performance versions of the M4 like the M4 CSL. Finally, the team headed out to the Autobahn to find out what effect the tune had on the M4 Competition's performance. They performed a test from 100 to 200 km/h (62-124 mph), which the tuned M4 accomplished in just 6.44 seconds. This makes it the fourth quickest car RaceChip has worked on. It was quicker than a tuned Mercedes-AMG GT4 Coupe 63 S (6.67 seconds) and nearly as quick as a Porsche 911 (991) Turbo S (6.39 seconds). From a technical standpoint, RaceChip described the new M4 as a masterpiece and there isn't much higher praise than that.

RaceChip/YouTube
RaceChip/YouTube
RaceChip/YouTube

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