DIESELR Cat & DPF Race Pipe (2007.5-2010 GM 2500/3500 6.6L Duramax LMM)

Cat & DPF Race Pipe Duramax LMM (2007.5–2010 6.6L GM 2500/3500)

The DIESELR Cat & DPF Race Pipe for Duramax LMM trucks is built for 2007.5–2010 GM 2500/3500 6.6L models. This system eliminates factory restrictions to improve exhaust flow, reduce temperatures, and support higher performance tuning. Built for off-road and competition environments, this race pipe offers unmatched reliability and fitment.

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Durable Construction

• Built from 16 gauge T409 stainless steel for long-term durability
• Mandrel-bent tubing ensures precise fitment and smooth airflow
• Upgraded flanges minimize the chance of leaks under pressure

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• Simple Installation
• Includes contour-bent hangers and TorcTite® clamps
• Bolt-on design—no cutting, no welding
• Designed to fit factory mounting points

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Proven Performance Benefits

• Reduces Exhaust Gas Temperatures (EGTs)
• Helps maximize power and torque under load
• Delivers a clean, aggressive exhaust note

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Vehicle Compatibility

• Designed for 2007.5–2010 GM 2500/3500 HD with 6.6L Duramax LMM
• Fits most standard cab and bed configurations

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• Legal Notice
• Requires proper aftermarket tuning
• Intended for off-road and race-use only
• May violate emissions regulations in your area—verify before purchasing