Exhaust help, please.
Hey guys, i have a 2008 subaru wrx nothing worked on it except a access port from Cobb Tuning. Im running it at stage 1 with 93 octane gas. I want to progress to stage 2 but in order to do that i need to redo the stock exhaust, I was suggested to run a 3' straight pipe from the Turbo back and take the resonators off. I essentiall am tryin to reproduce the STI sound and i was told that would be one of the best ways, Please some suggestions and input would be appreciated, what muffler would i want and what exhaust system to reproduce that sound? I also wanted to add the K&n airtake that was guaranteed a 17.5 hp increase, will i have to tune to that or is that covered under stage 1 or 2 in my accessport?
thank you very much ,Matt