Pay in 4 interest-free payments of $41.84 Learn more
Ships within 48 hours · Estimated delivery Aug 29 - Sep 3
where optimized transmission control is critical
making your truck feel more responsive
and comes standard with the Pro Feature Set for full diagnostic and logging control
Across the lineup
0L EcoDiesel
GDP 3.5" Downpipe (2017-2023 Duramax L5P) LMM where optimized transmission control isGDP 3. 5" Downpipe (2017 2023 Duramax L5P) Maximize Exhaust Flow. Lower EGTs. Improve Turbo Response. The GDP 3. 5" Downpipe, engineered for the 2017 2023 Duramax L5P, is built to reduce backpressure, improve turbo spool, and lower exhaust gas temperatures (EGTs). Designed for serious truck owners who need better airflow, stronger pulling power, and improved efficiency, this upgrade is the direct fit solution for increased durability and performance.
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