2001-2007 Duramax LB7/LLY/LBZ Aluminized 4" Down Pipe Back Exhaust (S6004AL) 2017 - 2023 GM Turbochargers

2001-2007 Duramax LB7/LLY/LBZ Aluminized 4" Down Pipe Back Exhaust (S6004AL) 2017 - 2023 GM TurbochargersBuilt from heavy duty aluminized steel MBRP's Installer Series exhaust systems offer a value price without compromising on the quality build to every component. While the seams are a major point of rust through with some budget systems, MBRP's fully sealed tubing adds years to your system. Constructed to the same specifications as our top of the line Pro Series. we back this with a 3 year warranty. MBRP exhaust systems are as much fun to install as

Bully Dog tuning devices will not modify or delete vehicle emissions

Crew Cab Short Box

They're also relieved to accommodate wire O-rings on the bottom

Quick spool up means taking off from stops is a breeze and the ability to retain your factory exhaust brake makes braking easier and saves your brake pads

This is not a home install

This sensor is a direct replacement APPS for the 1998

7L Cummins with our Fire Ring Gasket

SynShield OTR Plus 5W-40 Full Synthetic Oil can also be used in low-emission certified diesel engines that are equipped with EGR

HP Tuners Credits

Secure your helical cut cam gear during high RPM

People have noticed an increase in spool up and throttle response

Initial Torque: 130 ft-lbs at startup