marknjayne
Registered User
going to be making up a decat for the 3.2 A3 on thursday,being built with shark performance,looked at the r32 owners forums and find that decatting gains around 15hp (they have run before and after dyno runs),not actually having a full decat as in the whole length ,all we are doing is cutting both cats out and using two 2" 460mm decats in stainless flanged to allow the cats to be put back if needed,also the cats will have flanges welded on for the same reason,will give more info on it on thursday when i pick the car up