[wookwook]

just remember not all the noise goes out the back. even double walled borla is intrusive w/o the mid muffler. you wont get peak gains, but earlier peak tq in the power curve.. a couple hundred rpm or so. its a good building block. what ever you get, spy a mid pipe bullet just in case. They will all be flow though, not chambered, and loud. some even go back to the OEM suitcase. I have the OEM box as a rescue for sale. Love my Borla-Touring cat back.