You'll be fine without a tune, if anything it's probably running richer than it needs to be. So essentially you're not getting the most out of your mods without the tune but certainly not hurting the car. I have Z1 High flow cats, the FI exhaust, and Stillen Gen 3 CAI without a tune and I'm doing just fine for now.
__________________
2009 Base w/ Sport - Fast Intentions - Stillen - Whiteline - BC - SSR - Enkei - Z1 - UpRev Tuned
|