Mitsubishi EVO X by AMS Performance

It has been a while since we have heard anything about a modified Mitsubishi EVO X here on Top Speed, so we were ecstatic when the American tuner AMS Performance shared the news about their new tuning program for the rally bred rocket. The AMS package transforms not only the appearance of the turbocharged all wheel drive diamond star powerhouse, but refines every aspect from handling to horsepower.

The exterior modifications include a carbon fiber rear spoiler made by the lightweight experts at APR as well as a trunk, made from the wavy black stuff. Up front air is motivated away from the underside of the car resulting in an increase in down force thanks to a Voltex front splitter. The carbon fiber theme continues with the hood, but the piece de resistance are the 18 inch rims wrapped in so much Dunlop Direzza rubber that AMS had to spend some time rolling then fenders. Inside of the oversized rollers AMS decided to go with a big brake kit from Stoptech consisting of a pair of six piston calipers up front and two more four pod units in the rear.

Under the hood AMS reworked the 4B11 to handle big amounts of boost by starting out with a set of stronger valve springs to eliminate any possible power robbing valve float, a set of ARP head studs to keep the two machined aluminum ingots together no matter how much compressed air pushes them apart. After significantly strengthening the engine, AMS focused on making power. A reprogrammed ECU controls four 800 cc injectors that are fed by a CNC fuel rail that supplies enough go juice so that the Forced Performance Red turbocharger can compress enough air to make 385 HP.