I didnt need one man. They did lean me out just a bit, but it wasnt enough to cause any detonation to require a tune though I was suprised honestly, I thought I was going to have to drop the money for a tune as well.
no, i dont have many other mods, mostly appearance, and weight modification. i had flows, and a bassani x, but i sold the o/r and am scrapping the flows so i can change to a long tube set up. other then that just a useless cai that will be scrapped down the road. anyway i will be piss poor after the exhaust and header labor, so no tune sounds great to me.
i just wanted to make sure they wouldnt mess up my a/f numbers. so i can just bolt them up and go?