cheffyw wrote:Im currently running and Injen SRI and a Borla axelback with RL y-pipe but its a 3.5 so im not sure about 2.5 set up. Search the forums its really the only way you will get an answer....theres a search box on the top left type in 2.5 exhaust and see what comes up. Ive seen a couple of 2.5's on you tube with a topspeed pro 1 cat back exhaust on their AC and it sounds alright.