Injen 06-09 Civic Si Coupe Only 60mm Cat-back Exhaust w/ Titanium TipDesigned for specific vehicles the Injen Titanium Tip (TT) Edition gives the Super SES exhaust line its added flare. With a more aggressive burnt titanium tip finish larger diameters (where applicable) and featuring a slip fit design the Injen SES TT edition has proven to be the next best thing since the release of the SES line. This Part Fits: Year Make Model Submodel 2006 2011 Honda Civic Si