If you've been following the progression of PVT, you know we already upgraded PVT's post-manifold exhaust system with a full 3-inch system (PN BAS-5407R5) from Bassani. We initially opted for the catalytic version and the quiet mufflers. Knowing that we were about to optimize the inlet side of PVT, Justin wanted to ensure we maximized the exhaust too. Removing the cats has proven a good power builder on stock-exhaust GT500s, but in our case, the Bassani high-flow cats proved excellent. The difference between running them and not running them was negligible.