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This 4" Downpipe Back Exhaust starts at the downpipe and allows for the removal of the catalytic converter and DPF filter from the exhaust system for off-road use.
 
This race exhaust system is ideal for off-road enthusiasts who want to maximize their truck’s performance. The straight-pipe design enhances exhaust flow, reduces backpressure, and boosts fuel efficiency, giving your truck a noticeable performance edge.
 
*Does not fit the late models with the 3 bolt flange. Will not fit Cab & Chassis trucks.
 
*Off-road use only. Custom tuning is required*

GM Duramax LMM 6.6L - 40 Cal 4" Downpipe Back Exhaust (2007.5-2010)

SKU: ESSS-GM-07-4
    • 2007.5, 2008, 2009, & 2010 Chevrolet Silverado 2500 / 3500 HD with a 6.6L Duramax LMM Diesel engine.
       
    • 2007.5, 2008, 2009, & 2010 Chevrolet Silverado 2500 / 3500 HD with a 6.6L Duramax LMM Diesel engine.
       
    • Does not fit the late models with the 3 bolt flange.
       
    • Will not fit Cab & Chassis trucks.
    • 4" stainless steel piping 
    • Downpipe Back Race Exhaust System
    • OE style hangers for easy installation
    • Maximum flow for competition applications
    • No bungs
    • Increases Fuel Efficiency
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