FITMENT
- 2020-2023 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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Restricted turbine airflow, excessive under-hood heat, and ongoing intake contamination severely compromise the power and efficiency of L5P Duramax trucks. Restricted stock downpipes and DPF filters trap heat near the turbo and trigger constant regen cycles, while the factory EGR cooler chokes the intake with sticky soot sludge and introduces catastrophic coolant leak risks. Additionally, unsealed harness plugs leave sensitive CAN-bus wiring exposed to road moisture after removing emissions sensors.
- This complete L5P Performance & Protection Package eliminates primary breathing bottlenecks while fully protecting your truck's electronic network. Featuring a smooth high-flow turbo downpipe, precision EGR cooler removal hardware, and heavy-duty plug-and-play harness caps, it restores crisp throttle response, stops intake sludge formation, and delivers a reliable, high-efficiency diesel setup built for the long haul.
Key Features
- Cuts backpressure right off the turbine outlet so the L5P VGT turbocharger reaches boost sooner and throttle response turns sharp and immediate.
- Takes the factory EGR cooler out completely, keeping abrasive soot from ever reaching the intake valves and erasing the risk of internal coolant leaks.
- Closes up the disconnected factory sensor wiring with dedicated connector plugs that bar moisture, dust, and corrosion from the electrical system.
- Swaps out the restrictive exhaust canisters and crimped downpipe bends, ending fuel-draining regenerations and pulling EGTs down far enough for safer, sustained towing.
FAQ
Q: What is the biggest benefit of picking this 5" kit over the 4" version?
A: The 5" DPF delete pipe delivers maximum exhaust flow and volume. It is ideal for aggressive tuning, heavy towing, and anyone wanting lower EGTs with a deeper diesel exhaust tone.
Q: Will this kit help bring down exhaust temperatures?
A: Improved exhaust flow can help lower exhaust restriction and support reduced operating temperatures under heavy loads.
Q: In what way does the EGR delete protect the Duramax L5P engine?
A: Removing the factory EGR cooler helps stop exhaust soot from entering the intake manifold, cutting carbon buildup and helping keep airflow cleaner.
Q: Is the 4" version a better choice if I don’t require maximum flow?
A: The 4" DPF delete pipe offers solid flow gains and fits most setups, while the 5" is geared toward aggressive tuning and heavy towing. If you don’t need maximum flow, see the 4" DPF Delete Pipe & 3.5" Downpipe w/ EGR Delete Kit.
