If you have a manual trans
I'd call it pretty much a toss up, I wasn't really impressed with the performance increase with either in my 12 MT. Although the CAI does make an awesome sound. Gears is what really woke that car up! If you have an auto then get a tune. I also had an 2011 AT, don't ask, between first and second at wide open throttle my trans
took a nap. Never seen a transmission shift that slowly. The BAMA 87 street tune knocked .6 seconds off my eighth mile ET most of which came from my transmission shifting like, well, like a transmission!!