FITMENT
- 2017-2023 6.6L Silverado & Sierra Duramax L5P 2500HD 3500HD Diesel engine trucks.
- Note: Will NOT fit Cab & Chassis commercial-style trucks.
DESCRIPTION
Product Overview
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The factory exhaust and intake systems on Duramax L5P engines can create airflow restrictions and long-term contamination issues. The OEM turbo downpipe uses restrictive bends that limit exhaust flow directly after the turbocharger, while the factory EGR system recirculates hot exhaust gases and soot back into the intake system.
- The L5P Turbo Downpipe & EGR Delete Kit improves turbo exhaust flow, reduces intake soot buildup, and helps maintain cleaner, more efficient engine airflow.
Key Features
- Smooth 4" Mandrel-Bent Tubing: Maintains high exhaust gas velocity for noticeably faster turbocharger spool-up and crisper throttle response.
- Rapid Turbo Spool & Response: Mandrel-bent high-flow piping reduces backpressure directly off the turbine housing, allowing the L5P VGT turbocharger to spool up noticeably faster.
- Stops Intake Carbon Sludge & Coolant Leaks: Completely removes the factory EGR cooler, stopping abrasive soot from choking intake valves and eliminating internal coolant loss risks.
- Reduces EGTs & Eliminates DPF Regens: Replaces restrictive exhaust canisters and downpipe crimps to end fuel-draining active regenerations and drastically lower EGTs.
FAQ
Q: What is the difference between a race pipe and a complete exhaust system?
A: A race pipe replaces the restrictive factory emissions section with a high-flow pipe. A Full exhaust system replaces more of the factory exhaust path for customers looking for a full exhaust upgrade.
Q: How does the EGR delete protect the engine?
A: Removing the factory EGR cooler helps prevent hot exhaust soot from entering the intake system, reducing carbon buildup and helping maintain cleaner airflow.
Q: Why upgrade the turbo downpipe on the L5P Duramax?
A: The factory downpipe uses restrictive bends near the turbo outlet. The 3.5" mandrel-bent downpipe provides a smoother transition for exhaust gases, helping improve turbo efficiency and throttle response.
Q: How does the 4" DPF race pipe improve exhaust flow?
A: The 4" race pipe replaces restrictive factory emissions components with a smoother, higher-flow exhaust path, helping reduce exhaust restriction and improve airflow.
Q: Will this kit help lower EGTs?
A: Improved exhaust flow from the upgraded downpipe and race pipe helps reduce exhaust restriction, supporting lower exhaust temperatures during heavy loads.
