Side note posted by OverZealous (CT) on April 25, 2014 at 05:38 PM
Message
at the 2000-2500RPM range under load. I recently changed my test pipes/cat back to a full SZ 3" system with large resonators in the test pipes from a 2.5" system (3" - 2.5" test pipes, 2.5" cat back with resonated x-pipe). The sound is deeper overall and it has eliminated the rasp/resonance.