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4" Downpipe Back Exhaust for late 2007 to 2010 GM Duramax LMM 6.6L
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
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