5" Downpipe Back Single With Muffler | 2011-2015 GM 2500/3500 6.6L DURAMAX-531005 Truck Brand:CHEVROLET/GMC 2500 Part Number: 46-20478-B

Part Number: 46-20478-B

We designed this kit to optimize the engine efficiency by increasing airflow to the engine to help reduce EGTs

- Forged Milled Compressor Wheel (FMW)

torque and reduced EGT's

your choice

5" Downpipe Back Single With Muffler | 2011-2015 GM 2500/3500 6.6L DURAMAX-531005 Truck Brand:CHEVROLET/GMC 2500 Part Number: 46-20478-BConstructed 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 4" Cat Pipe TorcTite Clamps No Bungs Fits Cab