| Re: Interior resonance / exhaust drone... |
Subject: Re: Interior resonance / exhaust drone... by jonszr1 on 2014/8/25 17:35:10 on both my zr1s I extended the tips 2 in past the valance ,and that was the single best thing I did to quiet down the exhaust. I also think the super turbo mufflers work great with the 3 in exhaust to keep things in a decent level without costing any power |
