4" Cat & DPF Race Pipes With Muffler | 2015.5-2016 GM 2500/3500 6.6L DURAMAX- 431030 Oil Pump Kits " +15 HP and +37 lbs

+15 HP and +37 lbs

This is direct from Holset OEM VGT (Variable Geometry Technology) Turbocharger

the Bladerunner comes with 3 ports for nitrous injections

does not fit with OE Downpipe

Turnbuckle for precise boost pressure settings

4" Cat & DPF Race Pipes With Muffler | 2015.5-2016 GM 2500/3500 6.6L DURAMAX- 431030 Oil Pump Kits " +15 HP and +37 lbsConstructed 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 3 Bolt Flange No