FITMENT
- 2017–2023 6.6L Chevrolet Silverado / GMC Sierra Duramax L5P 2500HD 3500HD Diesel.
DESCRIPTION
Product Overview
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The 17–23 L5P Duramax is a heavy-duty powerhouse, but its factory EGR system is a ticking time bomb. By recycling hot, soot-heavy exhaust gases back into intake, the OEM EGR system clogs intake manifold with a concrete-like sludge, spikes EGTs, and risks catastrophic cooler leaks.
- The L5P EGR Delete Kit completely removes the bulky EGR valve and cooler assembly. It replaces them with precision-engineered, high-flow block-off plates to ensure engine breathes only clean, cool, fresh air.
Key Features
- Material Construction: CNC-machined 6061-T6 Billet Aluminum & High-Grade Stainless Steel.
- Keeps Intake Soot-Free: Blocks off the recirculated exhaust loop, preventing sticky soot and carbon buildup from clogging your intake manifold and valves.
- Lowers EGTs & Engine Temps: Redirects hot exhaust gases away from your intake, dropping overall operating and exhaust temperatures for better engine longevity.
- Quicker Turbo Spool-Up: Restores proper exhaust pressure dynamics, helping your turbocharger spool faster and delivering sharper throttle response.
FAQ
Q: What is the biggest advantage of deleting the EGR cooler on an L5P?
A: Factory EGR coolers suffer from extreme thermal stress and internal cracking. When they fail, coolant leaks directly into the cylinders—causing white smoke, overheating, and potential engine hydrolock. Deleting the cooler permanently eliminates this risk.
Q: Will deleting the EGR improve my L5P’s fuel mileage?
A: Yes, typically. By feeding your engine only cold, oxygen-rich fresh air instead of hot, oxygen-depleted exhaust gas, combustion efficiency is greatly improved. Most drivers report a noticeable increase in fuel economy after installation and tuning.
Q: Does this kit completely replace the EGR valve or just block it?
A: It completely removes it.Unlike cheap plate-only block kits, this is a full delete kit. It allows you to physically extract the bulky, heavy EGR valve and cooler assembly from engine bay, saving weight and freeing up massive space.
Q: Does installing this kit require custom tuning?
A: Yes. Because removing the EGR system alters factory emissions sensors, a custom engine tune is required to disable the EGR codes and prevent the truck from entering "limp mode" or throwing a Check Engine Light.
Q: Do I need to upgrade my Downpipe when installing the EGR Delete?
A: No, but it is highly recommended.While the EGR delete keeps your intake clean, the restrictive factory downpipe remains a major exhaust bottleneck. Upgrading to a 3.5" high-flow downpipe allows engine to breathe and exhale flawlessly, maximizing performance gains.
