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[Pre-Order, Inventory Back in 2 Week]2017-2023 GM 6.6L Duramax L5P EGR Delete kit with 3.5" DOWN PIPE-US STCOK
[Pre-Order, Inventory Back in 2 Week]2017-2023 GM 6.6L Duramax L5P EGR Delete kit with 3.5" DOWN PIPE-US STCOK
[Pre-Order, Inventory Back in 2 Week]2017-2023 GM 6.6L Duramax L5P EGR Delete kit with 3.5" DOWN PIPE-US STCOK
[Pre-Order, Inventory Back in 2 Week]2017-2023 GM 6.6L Duramax L5P EGR Delete kit with 3.5" DOWN PIPE-US STCOK
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[Pre-Order, Inventory Back in 2 Week]2017-2023 GM 6.6L Duramax L5P EGR Delete kit with 3.5" DOWN PIPE-US STCOK
[Pre-Order, Inventory Back in 2 Week]2017-2023 GM 6.6L Duramax L5P EGR Delete kit with 3.5" DOWN PIPE-US STCOK
[Pre-Order, Inventory Back in 2 Week]2017-2023 GM 6.6L Duramax L5P EGR Delete kit with 3.5" DOWN PIPE-US STCOK
[Pre-Order, Inventory Back in 2 Week]2017-2023 GM 6.6L Duramax L5P EGR Delete kit with 3.5" DOWN PIPE-US STCOK
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[Pre-Order, Inventory Back in 2 Week]2017-2023 GM 6.6L Duramax L5P EGR Delete kit with 3.5" DOWN PIPE-US STCOK

$159.99 $199.99
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2017-2023 L5P DURAMAX GDP EGR Cooler upgrade kit.
2017-CURRENT L5P DURAMAX GDP EGR DELETE Factory cooler setups recirculate soot and harmful gasses through your engine causing build-up and clogs, resulting in loss of performance and proven mechanical issues. GDP Cooler Upgrade Kits remove those concerns from the equation. GDP components install with an exact fit resulting in a longer lasting & better running truck, less turbo lag for better throttle response, cooler engine temps, less weight and a cleaner looking engine bay.


Installation method:https://gdpproducts.com/wp-content/uploads/2020/07/GDP421024Manual.pdf

Replace the restrictive crushed factory down pipe on your 2017+ L5P Duramax with this 3.5" Down Pipe for improved exhaust flow. Black Coated with Heat Resistance. Down Pipe includes bungs for sensors and NO tuning required to use this down pipe. 

***Connects to the DOC (Diesel Oxidation Catalyst) outlet flange and mates with OEM exhaust system front pipe with the 4 bolt style flange connection.***