Subaru WRX / STI Supreme SP Exhaust made by GReddy GReddy has a long history of creating quality Motorsport products that provide you the performance and characteristics that you are looking for in your aftermarket products. The GReddy SP exhaust system for the Subaru WRX / STI features large dual oval mufflers and quad staggered tips that are in a "tucked-away" layout to allow for maximum muffler clearance. Designed using 3 inch piping; this exhaust is carefully routed around the rear differential to centralize the Y-section for more air flow resulting in better performance gains. This system is finished using classic quad supreme SP 89mm tips with GReddy laser engraved into them and comes fully hand welded out of 304 stainless steel and backed by a limited lifetime warranty!GReddy Subaru WRX / STI Supreme SP Exhaust Features:304 Stainless Steel4 Piece Kit3.5" (89mm) Tips3" (76mm) Piping Limited Lifetime Warranty