4″ Downpipe-Back Single Exhaust — Aluminized

Description

Flo-Pro 4-inch downpipe-back in aluminized steel for the 2007.5–2010 LMM Duramax — a DPF-era system that flows like the pre-emissions trucks did.

Fits: GM Duramax LMM 6.6L Duramax 2007–2010

Specifications:
– Part #: Flo-Pro 431010
– Diameter: 4 inch
– Material: Aluminized steel
– Muffler: Straight-through, included
– Exit: Single side exit
– Warranty: Flo-Pro factory warranty