2007.5-2010 Chevy/GMC Duramax LMM 6.6L 4″ DPF Delete Downpipe-Back Exhaust

Boost the performance of your 2007.5–2010 Chevrolet Silverado or GMC Sierra 2500/3500 HD 6.6L Duramax LMM with this 4-inch DPF Delete Downpipe-Back Exhaust System, engineered for maximum flow and power. Constructed from T-409 stainless steel, this heavy-duty race exhaust eliminates the restrictive DPF and catalytic converter, reducing backpressure and improving exhaust flow. The result is lower EGTs, increased horsepower and torque, sharper throttle response, and improved fuel efficiency. Featuring OE-style hangers, pre-bent tubing, clamps, and fasteners, this system ensures a smooth installation with minimal modifications. Optional muffler configurations allow you to choose between a bold exhaust note or a quieter ride. ✅ Fitment: 2007.5–2010 Chevrolet Silverado 2500HD/3500HD 6.6L Duramax LMM 2007.5–2010 GMC Sierra 2500HD/3500HD 6.6L Duramax LMM❌ Not compatible with Cab & Chassis models �� Package Includes: 4″ T-409 Stainless Steel Downpipe-Back Exhaust System Clamps, hangers, and fasteners (reuse of some OEM fasteners may be required) ⚡ Key Benefits: Deletes DPF & CAT for race/off-road applications Maximizes exhaust flow for increased power & torque Reduces EGTs for improved engine reliability Improves throttle response and efficiency Strong T-409 stainless steel construction for long-term durability �� Installation: About 1 hour using standard tools. Trimming may be required for short wheelbase trucks. Category: Ram Cummins Tags: 2007 Duramax LMM DPF delete exhaust, 2008 GMC Sierra 6.6 Duramax race exhaust, 2009 Chevy Silverado 2500HD DPF delete kit, 2010 Duramax LMM downpipe back exhaust, Chevy Silverado 3500HD Duramax DPF delete, Duramax 6.6L LMM 4 inch exhaust system, Duramax LMM tuner required, GMC Sierra 2500HD Duramax exhaust upgrade, stainless steel Duramax 4 inch race exhaust Brand: FDP-TU