The
AMS Mitsubishi Evolution X STX400 package provides an amazing 100+HP
over stock by taking full advantage of the stock turbo’s potential while
maintaining OEM reliability and driveability.
The goal of AMS is to provide the highest quality, best performing products available. By utilizing research and development and rigorous testing programs AMS will never compromise the quality or performance of our products.
AMS was built on a foundation of integrity. This is who we are. This is what you can count on.