GruppeM is the official distributor for K&N in Japan. The company is notorious for making the most insane carbon-fiber andKevlar fabrications on earth. The installation of the GruppeM carbon Kevlar ...

My previous M3, a 1997 3.2-liter sedan, dynoed 221 hp at 6200 rpm and 224.7 lb-ft of torque at 3950 rpm. There wasn't much left to do unless I was going to spend the mega bucks for real engine tuning.

This video features a BMW E92 M3 equipped with a full Akrapovic exhaust system, an Eventuri intake, and a Stage 2 ECU remap. These upgrades combine to improve performance, response, and sound while ...