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    • BMW F87 M2 Competition stock vs. RaceChip GTS Black dynos and 100-200 kph sprints

      Race Chip offers their GTS Black piggyback tune for several platforms and the BMW F87 M2 Competition S55 motor is the newest platform to get their attention. As you know, BMW gave the F87 M2 Competition the S55 engine from its M3/M4 big brothers although it is slightly detuned.


      The baseline dyno essentially confirms the car is reducing boost in the upper rpm spectrum which in turn reduces top end horsepower:


      It still is underrated as measured by the conservative MAHA dyno with 422 ponies at the crank.

      What does output go to after the GTS Black RaceChip is installed?


      They gain roughly 80 crank horsepower or 69.5 at the wheels. Pretty good gains but the dyno gains do not transfer well to 100-200 kph testing.

      They only shave 1.4 seconds off the stock 100-200 kph sprint:




      Sure, it was wet out with winter conditions but that is still a weak real world gain.

      Here is how that time factors in with other RaceChip tuned cars:


      Flash tuned M2 Competitions are running much quicker times.

      Still, nice gains for a piggyback although a JB4 from BMS is much cheaper and showing larger gains. Either way, plenty of tuning room over stock on the M2 Competition.


      This article was originally published in forum thread: BMW F87 M2 Competition stock vs. RaceChip GTS Black dynos and 100-200 kph sprints started by Sticky View original post