I'm sure this has been asked before but i recently bought a 06 si coupe. Loving the car it runs great and is a lot of fun. However I'm new to this platform (have owned a wrx and most recently a fiesta st that blew the motor shortly after I bought it, thank God Carmax took it back!) The si I currently own has a muffler delete and while it doesn't sound bad or drone on the highway I've never been one for muffler deletes especially ones with shoddy welds. I've been looking at a q300 because a stock replacement is very expensive and hard to find. The other cars I've owned did not require a tune with a catback and I'm assuming the case is the same here but this being my first N/A car I just wanted to verify, thanks!