FITMENT
- 2017-2019 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 emissions and exhaust systems on L5P engines present major restrictions to turbo spool and long-term reliability. The crushed factory turbo downpipe and heavy DPF canister trap extreme exhaust heat under hood, creating intense backpressure and triggering fuel-draining active regenerations.
- Meanwhile, the factory EGR cooler feeds hot, abrasive exhaust soot directly into the intake manifold, baking into sticky carbon sludge and introducing severe coolant leak risks. Additionally, removing factory sensors leaves exposed wiring harnesses vulnerable to water and debris.
Key Features
- Rapid Turbo Spool & Response: Reduces backpressure directly off the turbine housing, allowing the L5P VGT turbocharger to spool up noticeably faster.
- Stops Intake Carbon Sludge & Coolant Leaks: Removes the factory EGR cooler, stopping abrasive soot from choking intake valves and eliminating internal coolant loss risks.
- Weatherproof CAN-BUS Plugs: Comes with specialized connector plugs that seal disconnected factory sensor wiring harnesses, keeping moisture, dust, and corrosion out of electrical system.
- Reduces EGTs & Eliminates DPF Regens: Replaces restrictive exhaust canisters and downpipe crimps to end fuel-draining active regenerations and drastically lower EGTs.
FAQ
Q: Why choose a 5" exhaust system instead of a 4" exhaust?
A: A 5" exhaust provides maximum airflow capacity and a deeper diesel exhaust tone, making it ideal for customers looking for a larger performance-oriented exhaust upgrade. A 4" system offers a more balanced setup for daily driving and towing.
Q: What is the advantage of combining the 5" exhaust and 3.5" downpipe together?
A: The 3.5" downpipe improves exhaust flow directly after the turbocharger, while the 5" exhaust system reduces restriction through the rest of the exhaust path. Together, they provide a complete high-flow exhaust solution.
Q: What is the difference between this kit and a downpipe-only upgrade?
A: A downpipe-only upgrade improves airflow directly after the turbocharger. This complete kit also upgrades the full exhaust path, addresses EGR contamination, and includes CAN Bus components for a more complete installation.
Q: Why are CAN Bus plugs needed for 2017–2019 L5P trucks?
A: The L5P platform uses electronic communication between multiple vehicle modules. The included CAN Bus components are designed specifically for compatible 2017–2019 applications.
