2020-2025 Duramax 4" Downpipe Back Exhaust - NO Muffler 

to suit CHEV / GMC 2500 HD 

• 4inch Down Pipe Back Exhaust
• OEM Style 4-Bolt Flange
• No Muffler - Straight Pipe
  
• Increased Torque & Fuel Mileage
• Aluminized or T409 Stainless Steel
• Easy Installation
• These kits will only fit models equipped with the OEM style 4-bolt flange off the turbo direct pipe

PLEASE NOTE THE BELOW

2020-2023

• DPF back require nothing & will fit right up! 
• downpipe back options WILL require tuning after installation

2024-2026

• Downpipe back & DPF Back systems require a tune due to added sensors and calibration differences

All Products sold are intended for off-road, competition, or approved road-use applications only, depending on the specific product supplied. It is the Customer’s responsibility to ensure the Product complies with all local laws, regulations, and vehicle requirements before installation and use.

To the maximum extent permitted by law, Ec Offroad accepts no liability for any engine, turbo, drivetrain, ECU, or mechanical damage, vehicle downtime, or related losses arising from the installation or use of the exhaust system. The customer acknowledges that vehicle modifications may affect performance and reliability and accepts all risks associated with installation and use of the product.

This product is not endorsed by, directly affiliated with Chev. All product and company names are the registered trademarks of their original owners. The use of any trade name or trademark is for compatibility and reference purposes only and does not imply any association with the trademark holder of their product brand.

 *for stock levels, please call our warehouse on 1300 504 060