ER-0028 2004.5-2005 6.6L Duramax LLY EGR Delete Kit

2004-2005 DURAMAX 6.6L LLY EGR Delete Kit

Improve the performance of your motor!

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How it Installation?

Installation instructions

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Step 1 :

Disconnect the mass air flow sensor. Remove the intake tube by loosening the hose clamps on the intake tube.Disconnect all coolant lines leading to the EGR cooler. Now the entire EGR assembly can be pulled out. Be sure to keep the exhaust gasket for installing the baffle.

Step 2 :

Pre install the charging tube using the provided baffle with O-ring.Note: Be sure to install two longer bolts on the front side of the pipe.

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Step 3 :

1.Install the provided bracket onto the motor using a factory bolt and the M10 x 20 hex head bolt provided in the kit.
2.Install the exhaust block using the provided 20mm and 30mm bolts. All bolts will be installed from the back of the baffle.

Step 4 :

1.Re-install intake tube with the front long bolts going through the previously installed support bracket.
2.Reverse earlier steps to re-install the pcv hose, electrical wires, intake and intake resonator.

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Step 5 :

1.Use the newly provided coolant hose and hose adapter to connect the two coolant ports previously connected to the EGR cooler. Secure the hose with the provided hose clamp.
2.Replace the manifold bolts with the provided vertical bolts.

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 2004-2005 6.6L Chevy GMC Duramax LLY Diesel EGR Delete Kit

TruckTok 2004-2005 6.6L Chevy GMC Duramax LLY Diesel EGR Delete Kit

$69.99

FITMENT

2004.5-2005 6.6L Chevrolet Silverado Duramax LLY 2500HD / 3500 HD.
2004.5-2005 6.6L GMC Sierra Duramax LLY 2500HD / 3500 HD.

DESCRIPTION

Product Overview

The 2004.5–2005 LLY Duramax is a legendary powerhouse, but it has one glaring Achilles' heel: the factory EGR system.By design, the EGR forces hot, carbon-heavy exhaust soot back into your clean intake tract to be re-burned.
Over time, this thick, abrasive sludge restricts airflow, robs you of power, and increases engine operating temperatures. Worse yet, the factory EGR cooler is notorious for leaking coolant, which frequently mimics or causes catastrophic head gasket failures.
Designed to completely replace the failure-prone EGR valve and cooler, this kit ensures your Duramax breathes nothing but cool, clean air. It’s the ultimate preventative maintenance upgrade for your daily driver, heavy hauler, or work truck.

Key Features

Aircraft-Grade 7075-T6 Aluminum: CNC-machined from ultra-tough billet aluminum and paired with a high-temp silicone hose.
Drop Your EGTs & Coolant Temps: By completely eliminating the EGR cooler, you stop recycling hot exhaust gases. Your engine runs cooler, relieving stress on your radiator and cooling system.
Instant Throttle Response: Rerouting your intake airflow removes the massive factory restriction. Enjoy quicker turbo spool-up and crisper, lag-free acceleration.
Boost Fuel Economy: Let your engine run at peak thermodynamic efficiency. Better airflow means less wasted fuel.
Bulletproof Reliability: No EGR means zero chance of coolant leaking into your cylinders or soot choking out your intake valves.

FAQ

Q: What is the difference between this "High-Flow Elbow Kit" and standard EGR Delete Kit?

A: The standard kit just blocks the EGR; your stock, restrictive intake piping stays.This High-Flow Kit replaces the entire factory elbow with a smooth, open pipe. By deleting the bulky throttle valve, it increases airflow by 80% for much better throttle response and boost.

Q: Do I need to remove the intake manifold (Y-bridge) to install this kit?

A: Yes. Unlike later LBZ/LMM engines where the EGR is highly accessible, the LLY's EGR cooler is buried directly beneath the intake Y-bridge,You must remove the Y-bridge to reach and extract the cooler.

Q: Which of the two kits is right for my truck?

A: Choose the Standard Kit if you want a budget-friendly way to prevent cooler/head gasket issues while keeping stock airflow.Choose the High-Flow Kit if you tow heavy or run aggressive tunes; it maximizes performance, turbo spool-up, and EGT reduction by fully optimizing your intake path.

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