I am getting ready to put on the GYTR slip in exhaust and I have researched on here and it looks like most go with the PC III....but that is for the full exhaust with the air box lid removed (or at least that is what I have found so far). My question is do I need to get the PC III if I leave my air box lid on. I realize that should somewhat defeat the purpose of the new exhaust, but I'm hoping it is something I can do at least until I buy the PC III. The guy at the shop told me when I got the exhaust that I dont need to map it, but it's looking like most of you disagree (again thats with the full exhaust set up).
thx
Mike
thx
Mike