2006 - 2011 Honda Civic Supreme SP Exhaust System by GReddy The Supreme SP for the ever-popular (FG) Civic  coupe embraces the classic GReddy Civic styling that has made the SP line so popular over the years. Stand out features of this latest version include: larger diameter 63.5mm (2.5”) piping, updated resonator, improved muffler section, and our new limited lifetime warranty. Like all GReddy exhausts, it€™s the ideal combination of fitment, styling, performance and deep exhaust note, that sets it apart from the competitors. It is also designed to be compatible with both Si models; coupe and sedan (using the optional 11050104 adapter.) Each GReddy Supreme SP system is a fully hand-welded 304 Stainless-steel exhaust. Features 63.5mm diameter piping 102mm exhaust tip Gains of 5hp and 3lbs torque Hand-welded 304 Stainless Steel construction Benefits Gains of 5hp and 3lbs torque Applications 2006 - 2011 Honda Civic DX FG1 2006 - 2011 Honda Civic EX FG1 2009 - 2011 Honda Civic EX-L FG1 2006 - 2011 Honda Civic GX FG1 2006 - 2011 Honda Civic Hybrid FG1 2009 - 2011 Honda Civic Hybrid-L FG1  2006 - 2011 Honda Civic LX FG1 2009 - 2011 Honda Civic LX-S FG1 2006 - 2011 Honda Civic SI FG2 What's In The Box? 1 - 3pc Supreme SP Cat-Back Exhaust System 1 - Stainless Steel Exhaust Tip Necessary Hardware Warranty GReddy Limited Lifetime Warranty