Thanks Bro. I appericate it, I have thought out and my first most is going to be a exhaust after all. I am going with the ark grip exhaust from stillen.I heard great things about it.If your car is build and tuned properly it won't. Antilag destroys the exhaust and turbo
Also I was going to say I have a 16 WRX and I'm going with an invidia cat back system in mine but not until I get the Cobb intake and accessport v3..