2007.5-2010 6.6L Duramax LMM EGR Delete Kit High Flow Intake Elbow Pipe Tube | SPELAB

LMM Duramax EGR Delete Kit Overview

SPELAB offer 2 options for your 6.6L Duramax LMM EGR delete. The EGR delete kit with a high-flow intake elbow boosts airflow and performance for tuned engines, while the standard kit focuses only on EGR removal for cost-conscious users maintaining stock setups.

Standard vs. High-Flow LMM EGR Delete Kit

EGR Delete Kit WITH High Flow Intake Elbow Pipe

• Improved Airflow: Reduces intake restriction, increases air volume, and enhances turbo response for smoother power delivery.
• Lower Intake Temps: Optimized elbow design helps reduce air intake temperatures, improving combustion efficiency.
• Performance-Oriented: Ideal for tuned engines, larger turbos, or other upgrades to maximize power potential.

EGR Delete Kit WITHOUT High Flow Intake Elbow Pipe

• EGR Removal Only: Solves carbon buildup and overheating issues but retains the stock intake system.
• Budget-Friendly: Lower cost, suitable for users not seeking extra airflow upgrades.
• Daily Driving Focus: Meets basic power and fuel economy needs but offers limited airflow improvement.

Best For

• High-flow version: Performance builds, towing, or tuned trucks needing better airflow.
• Standard version: Daily drivers prioritizing reliability and basic EGR-related fixes.

2007.5-2010 LMM Duramax EGR Delete Kit Key Features

• Choice of standard block-off hardware or a high-flow intake elbow configuration.
• U-shaped coolant bypass hose and clamps supplied with the EGR kits.
• EGR exhaust block-off plate and mounting hardware supplied with the EGR kits.
• With Intake configuration includes an intake-pipe O-ring and mounting provisions.
• Optional combinations add the named Up Pipe, Intercooler Pipe or exhaust package.

Specifications

Illustrated opening measurements are not a coupler or clamp purchase specification. Match the actual tube outside diameter and mating boot before choosing connection hardware.

What's in the Box

EGR/With Intake

• High-flow intake elbow with O-ring
• Exhaust block-off plate
• U-shaped coolant bypass hose and two clamps
• Support washer and mounting hardware

EGR/Without Intake

• Two intake-side block-off plates
• Exhaust block-off plate and support hardware
• U-shaped coolant bypass hose and two clamps
• Mounting hardware

Combination options add the named pipe package. Pipe-only options do not include the EGR hardware above.

Installation Instructions

 2007.5-2010 6.6L Duramax EGR Delete Kit Installation Instruction

Function & Benefits

• Reduce repeat EGR service: The LMM Duramax EGR Delete Kit closes the recirculation path, limiting new EGR-fed intake soot and eliminating service of the removed valve and cooler.
• Choose the intake change you need: EGR/With Intake replaces the intake elbow; EGR/Without Intake retains the standard intake arrangement without adding the high-flow elbow.
• Complete the coolant connection: The U-shaped hose connects the cooler-related coolant ports after removal of the EGR cooler.
• Remove cooler-related heat transfer: EGR cooler removal eliminates exhaust-to-coolant heat transfer through that component. Overall temperatures and airflow gains still depend on vehicle condition and the complete setup.

Fitment: 2007.5-2010 LMM 6.6L Duramax

• 2007.5 Chevrolet Silverado 2500HD / 3500HD 6.6L LMM Duramax Diesel
• 2007.5 GMC Sierra 2500HD / 3500HD 6.6L LMM Duramax Diesel
• 2008 Chevrolet Silverado 2500HD / 3500HD 6.6L LMM Duramax Diesel
• 2008 GMC Sierra 2500HD / 3500HD 6.6L LMM Duramax Diesel
• 2009 Chevrolet Silverado 2500HD / 3500HD 6.6L LMM Duramax Diesel
• 2009 GMC Sierra 2500HD / 3500HD 6.6L LMM Duramax Diesel
• 2010 Chevrolet Silverado 2500HD / 3500HD 6.6L LMM Duramax Diesel
• 2010 GMC Sierra 2500HD / 3500HD 6.6L LMM Duramax Diesel

For more Duramax models, check out our LBZ egr delete kit (2006-2007) and  LML egr delete kit for 2011-2016 trucks.

LMM Duramax EGR Delete Kit FAQ

What is the LMM Duramax EGR Delete Kit?

The LMM Duramax EGR Delete Kit provides hardware for changing the EGR arrangement on listed 2007.5-2010 Chevrolet Silverado and GMC Sierra 2500HD/3500HD trucks with the 6.6L LMM engine. The EGR kit is different from the pipe-only options on this page.

Will the kit fit an early-2007 LBZ Duramax?

No. The EGR kit is listed for the later 2007.5-2010 LMM application, not the earlier LBZ. Confirm the engine identification rather than relying on a 2007 registration year alone.

How do EGR/With Intake and EGR/Without Intake differ?

EGR/With Intake includes the replacement high-flow intake elbow. EGR/Without Intake uses the standard block-off arrangement without that elbow. Both EGR configurations include coolant bypass hardware; pipe-only selections are separate.

Does every option include an EGR delete kit?

No. Options named only 4-inch Race, 4-/5-inch Dp-Back, 2006-2010 Intercooler Pipe or 2001-2016 Up Pipe are individual pipe selections. Choose an option explicitly labeled EGR when the EGR kit is required.

Does the EGR kit include an Up Pipe or DPF exhaust package?

The EGR kit includes the additional pipe package only when that package is named in the selected combination. The 4-inch Race Crew Cab/Short Bed option has a configuration restriction that is not established by engine fitment alone.

Will the high-flow elbow work with my existing intercooler boot?

Check the actual elbow outlet, boot size and clamp range before assembly. Seat the flange seal and mounting tabs without forcing the pipe; an engine-year match alone does not guarantee that a worn or previously modified boot will seal correctly.

Will the kit stop a Y-bridge boost leak or exhaust hiss?

A new intake elbow does not repair every Y-bridge seal or up-pipe leak. Check the intake flange, O-ring, boot, clamps, block-off plate and exhaust joints separately if low boost, hissing or underhood haze is present.

What happens to the coolant connection after cooler removal?

The LMM EGR kit uses a U-shaped hose and clamps for the cooler-related coolant connection. Check hose clearance and coolant sealing; the bypass hose does not repair unrelated water-pump, radiator or head-gasket faults.

Why choose an EGR kit, and what benefits are listed?

The LMM EGR hardware limits new EGR-fed soot and removes service needs for the removed valve and cooler. The With Intake option also changes the intake elbow. Listed response, temperature, fuel-economy and longevity benefits depend on the complete vehicle setup.

Does the kit guarantee 20% better fuel economy or lower intake temperatures?

No. The listed fuel-economy improvement of up to 20% is not a guaranteed result for every LMM truck. Vehicle condition, load and use affect the outcome, and an intake elbow is not an intercooler. Existing deposits and unrelated faults still need separate attention.

Will the EGR hardware clear fault codes or service the DPF?

The physical EGR kit does not reprogram the engine computer, clear every fault or service a loaded DPF. Diagnose the actual fault and distinguish EGR work from DPF or other exhaust-system work.

How long does installation take, and what tools are needed?

The product lists approximately 4-6 hours, but access, corrosion, experience and added pipe work can extend the job. Plan for suitable hand tools, coolant collection, penetrating fluid, eye protection and rated vehicle supports where lifting is required.

Can I install the kit myself?

The LMM EGR job involves intake, coolant and exhaust connections, not just installing a plate. Use professional assistance if the full procedure, safe vehicle support or final leak testing is outside your experience.

Where is the complete installation guide?

Read the complete LMM Duramax EGR and intake-elbow installation guide for the illustrated procedure. The guide covers the With Intake configuration; additional pipe packages need their own applicable instructions.

Is the EGR modification legal for a daily driver or tow truck?

An off-road or race label alone does not exempt an EPA-certified Silverado or Sierra from U.S. emissions-tampering requirements. Daily driving, towing, agricultural use or a truck's age does not by itself establish permission to remove emissions controls.

Will the modification affect warranty coverage?

Emissions modifications can affect applicable warranty claims and coverage for related damage. Do not assume either that every vehicle warranty automatically disappears or that emissions-system changes preserve warranty protection; review the applicable terms and requirements.

Where can I buy the SPELAB LMM EGR kit or ask about a configuration?

Use the SPELAB product page to select the complete option name. For help matching an existing intake or exhaust configuration, contact service@spelabautoparts.com before ordering. SPELAB's official website or an authorized dealer can provide purchasing assistance.

LMM Duramax EGR Delete Kit Installation Guide

The LMM EGR delete kit is a crucial upgrade for the 2007.5-2010 6.6L Duramax engines. This guide will walk you through the installation process of the LMM delete kit, specifically designed for the 2008 and 2009 models. By following this guide, you'll ensure a smooth installation of the 08 Duramax delete kit and the 08 Duramax EGR delete kit.

LMM Duramax EGR delete kit enhances performance by improving airflow and reducing engine restrictions. Whether you have a 2008 or 2009 Duramax, this kit will boost your truck's efficiency.

Stay tuned to learn how to properly install the EGR delete kit and the 2009 Duramax EGR delete kit for optimal performance.

Tools and Preparation

To install the LMM EGR delete kit, you need several tools and some preparation. This includes a jack, wrenches, screwdrivers, and penetrating fluid. Ensuring you have all the necessary tools will make the installation of the 2008 Duramax delete kit smoother.

Safety is paramount. Before starting, disconnect the battery and secure the vehicle. This is crucial when working with the 08 Duramax EGR delete kit. Proper preparation prevents accidents and ensures a seamless installation.

Make sure to have all components of the LMM delete kit ready. This includes the high flow intake elbow pipe. Having everything on hand speeds up the process and avoids unnecessary delays.

Ready to start? Let's move to the next section where we begin the actual installation.

Step 1: Removing the Tire and Fender

First, use a jack to lift the vehicle and remove the right front tire. This step is essential to access the engine bay for the LMM EGR delete kit installation. Ensure the vehicle is stable before proceeding.

Next, remove the inner fender on the passenger side. This provides clear access to the areas where the 2008 Duramax EGR delete kit will be installed. Keep the removed parts in a safe place for reinstallation later.

These initial steps set the stage for a smooth installation process of the LMM delete kit. Proper access is crucial for the following procedures.

Let's move on to preparing the engine bay for the 08 Duramax delete kit.

Step 2: Preparing the Engine Bay

Start by applying penetrating fluid to all bolts and clamps related to the EGR system. This will make the removal process of the LMM EGR delete components easier. Allow the fluid to sit for a few minutes.

Next, disconnect the battery to ensure safety. This step is crucial when working on any vehicle, especially during the installation of the 08 Duramax EGR delete kit. Safety first to avoid any electrical mishaps.

Ensure you have clear access to the EGR cooler and related pipes. This is essential for a smooth installation of the 2009 Duramax EGR delete kit. Proper preparation minimizes complications.

Now, let’s proceed to disconnecting the existing EGR components.

Step 3: Disconnecting Existing EGR Components

Begin by carefully disconnecting the EGR cooler and related pipes. Use the appropriate tools to remove bolts and clamps. This step is critical for installing the LMM Duramax EGR delete kit.

Ensure you keep all removed parts organized. You’ll need to replace these with the new components from the 2008 Duramax delete kit. Proper organization speeds up reassembly and ensures no parts are lost.

If any bolts are difficult to remove, reapply penetrating fluid and allow it to sit. Patience is key to avoiding damage during the removal process of the 2009 Duramax EGR delete kit.

Once all components are removed, you’re ready to install the LMM EGR delete.

Ready to install the new kit? Let’s move on to the installation steps.

Step 4: Installing the SPELAB LMM EGR Delete Kit

Start by positioning the new high flow intake elbow pipe from the LMM EGR delete kit. Ensure it fits correctly before tightening any bolts. This is a crucial part of the LMM delete kit installation process.

Secure the new EGR delete components using the bolts and clamps provided. Make sure each connection is tight to avoid leaks. This step is essential for the 08 Duramax delete kit.

Verify that all connections are secure and properly aligned. The proper installation of the 2008 Duramax EGR delete kit ensures optimal engine performance and reliability.

Now that the new components are in place, we’ll reassemble the engine bay.

Step 5: Reassembling the Engine Bay

Begin by reconnecting the battery to ensure the electrical system is ready. This step is crucial for testing the installation of the LMM Duramax EGR delete kit. Safety checks are important before starting the engine.

Reinstall the inner fender and tire. Make sure all components are securely in place. Proper reassembly is essential for the 08 Duramax EGR delete kit to function correctly.

Double-check all connections and make sure no tools or parts are left in the engine bay. This final check ensures the 2008 Duramax delete kit installation is complete and the vehicle is safe to operate.

Ready for a test drive? Let’s move on to testing and final adjustments.

Step 6: Testing and Final Adjustments

Start the engine and let it idle for a few minutes. Check for any leaks or unusual noises. This is a crucial step to ensure the LMM EGR delete kit is installed correctly.

Monitor the engine’s performance during a short test drive. Pay attention to any changes in power or responsiveness. The 2008 Duramax EGR delete kit should improve overall performance and efficiency.

After the test drive, recheck all connections and fluid levels. Make any necessary adjustments to ensure everything is secure and functioning as intended. This final check guarantees the 08 Duramax delete kit is properly installed.

Congratulations! You’ve successfully installed the 2009 Duramax EGR delete kit. Enjoy the enhanced performance of your Duramax engine.

Installation Summary

Installing the LMM EGR delete kit in your 2007.5-2010 GMC Sierra or Chevrolet Silverado 2500/3500 HD 6.6L Duramax Diesel significantly enhances your vehicle's performance. This guide covered the essential steps for a successful installation of the LMM delete kit, including the 2008 Duramax delete kit and 2009 Duramax EGR delete kit.

By following this guide, you ensure that the LMM Duramax EGR delete kit is properly installed, leading to improved airflow and engine efficiency. Whether you own a 2008 or 2009 model, this kit is designed to meet your needs.

Thank you for choosing the 08 Duramax EGR delete kit from spelab auto parts. If you have any questions or need further assistance, please contact our support team at service@spelabautoparts.com. Enjoy the enhanced performance and reliability of your Duramax engine!