11-15 DURAMAX EXHAUST W/ V-BAND FLANGE

2011–2015 LML Duramax Exhaust Systems (V Band)

Race Pipe, 4 Inch, and 5 Inch Options Available

This exhaust system is built for 2011–2015 GM 2500HD/3500HD trucks equipped with the 6.6L Duramax LML. These kits are designed to improve airflow, reduce backpressure, lower EGTs, and give your truck a deeper tone while supporting performance upgrades.

Important Fitment Note (V Band vs 3 Bolt)

These kits are engineered specifically for trucks equipped with a V band clamp connection at the turbo direct pipe.

Fits:
2011–2015 Silverado and Sierra 2500HD/3500HD LML with V band turbo connection

Does not fit:
Trucks with a 3 bolt flange turbo direct pipe

Some 2015 models came with a 3 bolt turbo connection. Please verify before ordering.

Built to Last

Constructed from heavy duty 16 gauge T409 stainless steel for long term durability
Mandrel bent tubing for maximum flow and a perfect fit
Upgraded flanges and clamps for a secure, leak free connection
Contour bent hangers provide a factory style fit and easy install

Performance Gains

Improved airflow and throttle response
Lower exhaust gas temperatures (EGTs)
Supports upgraded turbos and higher horsepower builds
Deep, aggressive exhaust tone

Features

16 gauge T409 stainless steel construction
Mandrel bent tubing
OEM style V band flange
Leak free flanges and upgraded clamps
Pre welded contour bent hangers
No sensor bungs

Fitment

2011–2015 Chevrolet Silverado and GMC Sierra 2500HD/3500HD
6.6L Duramax LML
EC/CC, SB, LB, and dually configurations
Only compatible with V band style turbo direct pipe

Competition Use Notice

These exhaust systems are intended for off road and competition use only and require aftermarket tuning to prevent codes and ensure proper engine operation. Buyer is responsible for ensuring compliance with local laws and regulations.