SPELAB 2006-2007 6.6L Duramax LBZ EGR Delete Kit w/High Flow Intake Elbow

SPELAB 6.6L Duramax LBZ EGR Delete Kit with High Flow Intake Elbow is designed to permanently eliminate EGR system issues by removing the clog-prone EGR valve and cooler, significantly reducing engine temperatures and carbon buildup for improved engine longevity. The included high-flow intake elbow optimizes airflow efficiency, delivering enhanced power response and fuel economy - ideal for LBZ owners seeking both performance and reliability.

2006-2007 LBZ Duramax EGR Delete Kit Features

• Complete EGR delete solution (includes block-off plates, gaskets & high-flow elbow)
• Lowers intake air temperatures and reduces turbo lag
• Increases horsepower, torque and fuel efficiency
  

Function

The 2006-2007 LBZ Duramax EGR Delete Kit with High Flow Intake Elbow combines exhaust block-off, replacement intake and coolant-connection hardware to address EGR-related soot, restriction, heat and recurring maintenance.

• Limit soot buildup and support engine longevity: The block-off hardware stops EGR exhaust from adding new soot to the LBZ intake, helping preserve airflow after existing deposits have been cleaned.
• Support airflow and power response: The With Intake elbow replaces the EGR-related intake section and carries charge air toward the existing Y-bridge. Addressing restriction supports engine response; the elbow is not a complete Y-bridge replacement.
• Reduce EGR-related heat input: Removing the EGR cooler eliminates heat transfer through that component. The supplied hose and clamps reconnect the coolant circuit, while the elbow's mounting tabs support the replacement intake section.
• Reduce recurring EGR repair costs: Removing the EGR valve and cooler eliminates their future cleaning and replacement needs on an eligible LBZ application.
• Support fuel efficiency: Fuel-economy improvements of up to 20% depend on the LBZ's condition, operating use and complete configuration; the hardware alone does not guarantee that increase.

The Without Intake configuration uses block-off plates and a separate support bracket instead of supplying the replacement elbow.

Notes

• EGR Delete Kits are intended for OFF-ROAD USE ONLY!
• This kit WILL NOT WORK on 2007.5 and up model years
• Please allow a 0.5-1 inch difference due to manual measurement
• Professional installation is highly recommended (No Instruction Included)

Specifications

What's in the Box

Black/With Intake EGR Kit

• 1 high-flow intake elbow with mounting tabs
• 1 exhaust block-off plate
• 1 coolant hose
• 2 hose clamps
• 1 rubber sealing ring
• Mounting bolts and a nut

Black/Without Intake EGR Kit

• 2 black EGR block-off plates
• 1 exhaust block-off plate
• 1 formed support bracket
• 1 coolant hose
• 2 hose clamps
• 2 rubber sealing rings
• Mounting bolts, nuts and a washer

Combination packages add the components named in the selected option. The standalone Up Pipe and Intercooler Pipe options do not include the EGR-kit contents listed above.

Fitment

• 2006 GMC Sierra 2500 3500 HD 6.6 LBZ Duramax Diesel
• 2007 GMC Sierra 2500 3500 HD 6.6 LBZ Duramax Diesel
• 2006 Chevrolet Silverado 2500 3500 HD 6.6 LBZ Duramax Diesel
• 2007 Chevrolet Silverado 2500 3500 HD 6.6 LBZ Duramax Diesel
• This kit WILL NOT WORK on 2007.5 and up model years

For later Duramax models, check out our LMM egr delete kit (2007.5-2010) and  LML egr delete kit for 2011-2016 trucks.

LBZ Duramax EGR Delete Kit with Intake Elbow FAQ

Does every option include the high-flow intake elbow?

No. The LBZ high-flow intake elbow is included only in options labeled With Intake. Without Intake options and standalone accessory selections do not include that elbow.

What is the difference between With Intake and Without Intake?

The LBZ With Intake EGR kit combines the replacement elbow with exhaust block-off and coolant-connection hardware. The LBZ Without Intake EGR kit uses block-off plates and a separate support bracket without supplying the elbow.

Are the Up Pipe and Intercooler Pipe options complete EGR kits?

No. The standalone Up Pipe and 2006-2010 Duramax Intercooler Pipe selections are accessory-only options. Choose an option that explicitly names the EGR-kit configuration when the project requires both the kit and an added pipe.

Does the base With Intake package include an exhaust system or CCV kit?

No. The base Black/With Intake option does not include a downpipe-back exhaust or CCV kit. Exhaust components are supplied with the named exhaust combinations, and CCV hardware is supplied only with options labeled +CCV.

Does the intake elbow replace the complete Y-bridge?

No. The LBZ EGR kit's intake elbow is not a complete replacement Y-bridge assembly. Replacing the elbow does not independently renew the remaining Y-bridge joints or seals. Read the Duramax intake elbow, Y-bridge and cold air intake comparison for the differences.

Can the LBZ intake elbow guarantee that a boost leak will be fixed?

No. The LBZ intake elbow cannot repair leaks elsewhere in the charge-air system. Locate the leaking joint and inspect the seals, couplers and support before choosing parts. See the Duramax Y-bridge and cold-side leak guide for diagnostic checks.

Does the LBZ EGR kit fit every 2007 Duramax?

No. The EGR-kit configurations are listed for 2006-2007 LBZ trucks, including 2007 Classic, not 2007.5-and-later LMM trucks. A separate accessory's model-year label does not expand the EGR kit's fitment.

Which EGR kit should I choose for a 2006 truck labeled LLY?

Send SPELAB the VIN and EGR-connection photos before ordering for a 2006 LLY-labeled truck. Do not choose the 2004-2005 LLY EGR kit solely from the shared LLY name.

Does EGR hardware remove old intake deposits or change the engine software?

No. The LBZ EGR hardware does not clean existing intake deposits or reprogram the engine control module. Intake cleaning and electronic compatibility are separate parts of project planning.

Will the downpipe-back exhaust combinations fit every cab and bed length?

EGR-kit engine fitment does not establish exhaust-system cab, bed or wheelbase fitment. Match the selected downpipe-back package to the truck's exhaust layout and chassis dimensions before ordering.

What should be checked during intake-elbow installation?

Check the LBZ intake elbow's interior for loose debris, align the mounting tabs without pulling the tube into position with bolts, and inspect the mating seal, coupler engagement and clamp placement before the final leak check.

Does an off-road or racing label establish an emissions exemption?

No. An off-road or racing label alone does not exempt an EPA-certified truck from U.S. emissions-tampering requirements.

Installation Note

The following steps summarize installation of the LBZ EGR Delete Kit with High Flow Intake Elbow. Accessory-only selections and exhaust, up-pipe, intercooler-pipe or CCV additions have their own installation requirements.

1. Prepare the engine: Allow the engine to cool completely, lay out the selected kit and prepare the coolant system for the EGR-related work.
2. Access the EGR assembly: Follow the installation sequence for the truck, remove the applicable EGR components and clean the exposed sealing surfaces.
3. Fit the elbow and block-off hardware: Check the intake elbow for loose debris, then align the sealing ring, mounting tabs and exhaust block-off plate without forcing the connections together.
4. Connect and support the plumbing: Secure the intake connections and mounting hardware, then route and clamp the coolant hose clear of hot or moving parts.
5. Refill and inspect: Reassemble the access components, refill and bleed the cooling system according to the vehicle service procedure, and check for coolant and intake leaks. Recheck the coolant level after the engine cools.