I had a Borla Turbo (40658) installed with new Walker cats and all new pipes from the manifolds back. System looks great. Sounds great when started up or at low idle parking lot cruising. I went this route based on some of the feedback here.

However, I HATE the sound and volume under heavy acceleration and during freeway driving. It's incredibly loud and droning in the cabin, especially under heavy throttle at lower RPMs (below 3.5-4K).

It's a very small muffler compared to stock. I am going to replace it as soon as I can with something quieter, and have been looking into the Dynomax VTs which claim a 'drone free' performance.

Anyone here have experience with the VT series, or the larger Dynomax universals on the VX?