AMS STX500 Package for the Mitsubishi Evo X
Building upon our successful STX400 program, AMS brings you the third stage in their power upgrades for your EVO X boosting output to 500+HP.
AMS STX500: The Ultimate Pump Gas EVO X
The goal was to create a 500+HP street and track terror, maximizing power on the stock engine with a goal to keep turbo spool time to an absolute minimum. Running on standard 93 octane from the pump, they easily achieved our 500HP goal with low-end power characteristics nearly identical to the stock turbo. By keeping the torque down low, you quickly hit the mid to high rpm range. When you punch the throttle, the 200+HP increase will be crystal clear while your competition is left in the dust!
The STX500 was created to bridge the gap between a full bolt-on, stock turbo car like the STX400 and a built engine, full AMS turbo kit EVO X. It is easy to bolt on a big turbo to make top-end power, but the extreme turbo lag associated with this method ruins your driving experience.
AMS started with the tried-and-true GTX billet wheel, ball bearing 30R Turbo and tailored it to meet our goal of maximum usable horsepower on pump gas. They spent considerable time testing turbos, exhaust housings and compressor inlets to find the perfect combination that will deliver you the best performing pump gas EVO X package while retaining the stock engine. What they ended up with was a turbo that produces over 500HP without sacrificing the low end torque - making one fat and usable powerband. This ensures you get a jump on your competition on the street while exiting turns faster on the road course!