All GReddy Supreme SP systems the fully hand-welded 304 Stainless-Steel exhaust carries a Limited Lifetime Warranty

The Tomei product concept is “To produce a great product for ultimate driving pleasure”. This time our latest product developments have been in these new Titanium exhaust systems. In recent years we have seen a growing trend in clubman racing series and more users enjoying their cars at track events. Seeing that there are power restrictions from the bolt on exhaust systems that are currently available on the market, we have decided to make a better product. Not for just power but for weight reductions and the best value for money product. So here we have our true competition use design exhaust system.

With distinctive style and design, the Greddy Performance Products DD-R is a modern take on the highly-sought after GReddy DD “Dynamic Dual” exhaust of the past. The iconic DD exhausts have always been recognized for its aggressive dual exit look and deep GReddy sound, but with this new DD-R, we also incorporated updated and improved full 304 stainless-steel construction.

GReddy Blow Off Valves are easily adjustable to eliminate compressor surge and preventing premature boost leakage, while increasing boost response between shifts. Each valve is made of durable cast and billet aluminum frame and the valve to diaphragm ratio provides performance that cheap piston types cannot offer. The spring stiffness adjustment screw and the three different models give the GReddy user the option to match vehicles with mild upgrades to heavily tuned engines.