Trust Greddy, also known as Gracer for aero and Grex for brake parts has been around forever. They are just as good as HKS but have a more reasonable price tag. They are undoubtedly one of the best in Japan for JDM parts. Trust Greddy started out with three friends who enjoyed racing. The three redesigned an exhaust system based on vehicle and stage, resulting in multiple wins at the professional level. The results of their exhaust manifold and muffler modifications led to a demand from others for custome exhaust and mufflers. The "trust" put into them by others to make cars go faster led to the formation of Trust as the company known worldwide today. Check'em Out: Trust Greddy's Website