DIESELR Cat & DPF Race Pipe (2015.5-2016 GM 2500/3500 6.6L Duramax)

The DIESELR Race Pipe Duramax LML for 2015.5–2016 GM 2500/3500 6.6L trucks delivers reliable off-road performance with unmatched durability. Designed to replace the factory catalytic converter and DPF section, this system is precision-built from 16-gauge T409 stainless steel for long-lasting strength and corrosion resistance.

Unlike standard kits, this exhaust is mandrel-bent for optimal flow and includes reinforced flanges for a tight, leak-free fit. With this upgrade, you can expect a noticeable drop in EGTs, a gain in horsepower, and that signature deep exhaust tone DIESELR systems are known for.

 Key Features

• Built from heavy-duty T409 stainless steel
• Mandrel-bent tubing ensures smooth, unrestricted airflow
• Improved flanges and TorcTite® clamps for a secure, leak-proof install
• Includes contour bent hangers for a proper OE-style fit
• Helps reduce EGTs and increase power during towing or hard use
• Produces a deep, aggressive exhaust note diesel owners love

 Fitment & Notes

• Fits: 2015.5–2016 Chevrolet Silverado / GMC Sierra 2500 & 3500 HD with 6.6L Duramax LML
• Compatible with EC-CC/SB-LB-Dually configurations
• ⚠️ Only fits models with 3-bolt flange at the turbo direct pipe
• ❌ Not compatible with V-band clamp turbo configurations

Emissions Disclaimer

This Race Pipe Duramax LML is designed for competition/off-road use only and requires aftermarket tuning to function correctly. Installation on emission-controlled vehicles may violate local, state, or federal laws. Please verify regulations before purchasing or installing.