ER-0025 2017-2023 6.6L Duramax L5P EGR Cooler Delete Kit

17-23 6.6L Duramax L5P EGR Cooler Delete kit

Improve the performance of your motor!

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How it Installation?

Installation instructions

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Step 1 :

Remove the intake pipe and intake box. then remove the heat shield on the EGR hot side pipe shown in the circle below, which connects the EGR valve to the cooler and Y-shaped bridge. Then remove the six 13mm head bolts that secure the pipeline.

Step 2 :

Remove all eight bolts securing the Y-bridge to the intake runners. the Y-bridge will move slightly forward, then upward and out of position. Note that the 10mm head bolts will remain in the holes of the Y-bridge due to the OEM rubber inserts. However, be extremely vigilant to prevent any hardware or parts from falling out, as both intake runners are exposed during this process.

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Step 3 :

After removing the Lower EGR Valve, proceed to install the provided Steel Manifold block-off plate, equipped with a new gasket and necessary hardware, onto the exhaust manifold. During this installation, reuse two of the original studs and nuts, and ensure they are torqued to 25 foot-pounds.

Step 4 :

Locate the Bridge Block Off Plate Supplied 8mm flange head bolts, and gasket. Install block off plate on to Y-Bridge and torque flange bolts to 25 ft lbs.

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Step 5 :

The coolant pipes in the kit can be installed onto the upper turbine coolant pipe using OEM spring clamps. The brass inverted hook will be connected to the OEM coolant pipeline, which is connected to the coolant tank hose near the battery through a T-shaped joint.

Step 6 :

1.Install the bracket. The M10 bolt will be screwed into the support bolt. Secure the transmission dipstick to the bracket using 1/4-20 bolts, nuts, and washers.
2.The bracket will hold the coolant hose connector in place.

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TruckTok 2017-2023 6.6L Chevy GMC Duramax L5P diesel EGR Valve Cooler Delete kit

TruckTok 2017-2023 6.6L Chevy GMC Duramax L5P diesel EGR Valve Cooler Delete kit

$131.99

FITMENT

2017–2023 6.6L Chevrolet Silverado / GMC Sierra Duramax L5P 2500HD 3500HD Diesel.

DESCRIPTION

Product Overview

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.

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