4" Cat & DPF Race Pipes With Muffler | 2017-2023 GM 2500/3500 6.6L DURAMAX L5P-431031 Engine Size:6.6L 6L Duramax that offers complete

6L Duramax that offers complete adjustability of many features

In just a few minutes you'll have your new favorite addition to your truck ready to go

GM Equivalent P/N: 97192618

Outflows the factory exhaust manifold by 25%

It comes with a Fleece Performance 63mm FMW compressor wheel and 66mm high flow turbine wheel

4" Cat & DPF Race Pipes With Muffler | 2017-2023 GM 2500/3500 6.6L DURAMAX L5P-431031 Engine Size:6.6L 6L Duramax that offers completeConstructed out of 16 gauge aluminized steel or T409 Stainless, this exhaust system is designed to simplify installation with included clamps, preweld contour bends and improved flanges. Enjoy a noticeable boost in performance, lowered EGTs and amplified air flow with this Mel's system. For powerhouse performance, Mel's delivers horsepower you can hear! Features: Ease of installation Contour Bent Hangers TorcTite Clamps OEM Style 4 Bolt Flange No