EGR Valve Cooler Delete Kit Black Off Plate for 2011-2016 LML 6.6L Duramax GMC Chevy 2500HD 3500HD | SPELAB

SPELAB 2011-2016 6.6L Duramax EGR delete improves fuel economy (up to 20%), reduces DPF failure risk, and extends engine life by preventing soot buildup. It lowers engine temperatures, restores power, and avoids costly EGR repairs. The engine runs cleaner and more efficiently without recirculating exhaust gases.

Block-off hardware and a coolant bypass hose assembly close the EGR connections and reroute coolant around the removed components. Choose a silver, black or red base kit, or the corresponding passenger-side up-pipe or year-specific DPF combination.

LML EGR Valve Cooler Delete Kit Key Features

• EGR Removal
• Quicker turbo spool with lower EGTs
• Faster recirculation of the coolant resulting in lower coolant temps
• Longer-lasting: Stronger, more durable, and longer-lasting than OEM design.
• Factory Manifolds Retained: Removes the listed EGR valve and cooler without requiring replacement of the stock intake and exhaust manifolds.
• Coolant Bypass Hardware: Includes the pictured hose assembly, fittings, clamps and sealing hardware for the coolant connections described in the instructions.
• Base Kit and Pipe Combinations: Three EGR hardware colors are offered, with separately selected passenger-side up-pipe and DPF-pipe combinations.

Installation notes

• This kit will allow you to delete the EGR actuator valve as well as the EGR cooler but retain your stock intake and exhaust manifold
• Direct Replacement, No Modification Needed.
• Professional Installation is Highly Recommended

Looking for a complete LML delete solution? Check out our full LML Delete Kit here.

Installation

 2011-2016 LML 6.6L Duramax EGR Delete Instruction

Specifications

What's in the Box

• EGR block-off and mounting components.
• Coolant bypass hose assembly, fittings and clamps.
• O-rings, fasteners and installation instructions.
• Additional up-pipe or DPF components only with the selected combination.

Benefits & Function

On the 2011–2016 6.6L LML, this kit removes the EGR actuator valve and cooler components while preserving the stock intake and exhaust manifolds. The block-off hardware closes the exhaust-recirculation path, and the hose assembly reroutes the coolant connections. This reduces the EGR source of intake soot and addresses recurring valve/cooler maintenance without requiring a replacement intake manifold.

The existing product information describes quicker turbo spool, lower EGTs and coolant temperatures, restored power, longer engine life and reduced EGR repair costs. Fuel-economy gains are stated as up to 20%, with actual results depending on condition, calibration, load and use. The kit does not remove existing deposits or repair the DPF, and the base EGR package does not include the additional exhaust hardware shown in other combinations.

Fitment

• 2011 Chevrolet Silverado / GMC Sierra 2500HD & 3500HD — 6.6L LML Duramax
• 2012 Chevrolet Silverado / GMC Sierra 2500HD & 3500HD — 6.6L LML Duramax
• 2013 Chevrolet Silverado / GMC Sierra 2500HD & 3500HD — 6.6L LML Duramax
• 2014 Chevrolet Silverado / GMC Sierra 2500HD & 3500HD — 6.6L LML Duramax
• 2015 Chevrolet Silverado / GMC Sierra 2500HD & 3500HD — 6.6L LML Duramax
• 2016 Chevrolet Silverado / GMC Sierra 2500HD & 3500HD — 6.6L LML Duramax

The base EGR application covers 2011–2016 LML trucks. DPF combinations have separate 2011–2015 and 2015.5–2016 labels; confirm the truck's exhaust connections and the correct package before ordering, especially for a 2015 vehicle.

Best For

• LML builds addressing EGR valve or cooler maintenance while keeping the factory manifold arrangement.
• Installers needing matched EGR block-off and coolant bypass components.
• Owners selecting an EGR-only kit, passenger-side up-pipe package or correctly matched DPF combination.

Installation Overview

For the detailed installation procedure, please refer to the installation instructions included in the package.

1. Confirm the application and package. Match the LML engine, truck year and selected combination. Compare the received hardware with the packing list, including any separately selected up-pipe or DPF components.
2. Prepare and gain access. Allow the engine to cool, isolate the batteries and handle coolant according to the instructions. Remove the specified intake and access components, protecting open ports and retaining parts identified for reuse.
3. Remove the specified EGR components. Follow the complete sequence for the EGR valve, coolers, coolant lines and related connections. The base kit retains the factory intake and exhaust manifolds.
4. Install the closure and coolant hardware. Fit the matched block-off parts, seals and mounting hardware. Route and secure the coolant bypass hose assembly as instructed, checking each fitting and clamp against the actual connection.
5. Reassemble and inspect. Restore the removed intake components and connections, refill the cooling system to vehicle specifications and inspect for leaks. Confirm compatible calibration and investigate warning lights before use.

See the LML EGR installation instructions. Additional pipe work depends on the chosen package; use the instructions matching the supplied hardware.

For other package scopes, see the separately listed All-in-One LML Duramax package or alternative LML EGR listing. Confirm each product's included components separately.

FAQ

Which trucks does the base EGR kit fit?

The stated application is 2011–2016 Chevrolet Silverado and GMC Sierra 2500HD/3500HD trucks with the 6.6L LML Duramax diesel. Confirm the engine and selected package rather than choosing by displacement alone.

Can I keep the stock intake and exhaust manifolds?

Yes. The existing product information states that the kit removes the EGR actuator valve and cooler while retaining the stock intake and exhaust manifolds. It is listed as a direct replacement without modification for the stated application.

What is included in the base kit versus the combinations?

The base kit supplies the listed EGR block-off, mounting, coolant bypass and sealing hardware. Options explicitly labeled with passenger-side Up-Pipe or DPF components add that hardware. A tuner and the additional exhaust parts should not be assumed to be in the base package.

Which DPF package should I select for a 2015 truck?

The current choices distinguish “2011–2015 EGR + DPF” from “2015.5–2016 EGR + DPF.” Confirm the actual exhaust connection layout with SPELAB before ordering for a 2015 truck. The base EGR kit's 2011–2016 range does not make the two DPF packages interchangeable.

Is a passenger-side up-pipe included or required?

It is included only in an option that names the passenger-side Up-Pipe. The base kit is listed for retaining the factory manifolds and using its matching block-off hardware. Whether to replace an existing up-pipe depends on its condition and the chosen configuration; inspect existing exhaust connections during the work.

Is an up-pipe the same as a downpipe?

No. The passenger-side up-pipe carries exhaust toward the turbocharger; a downpipe carries exhaust away from it. Use the selected option name and confirmed components when ordering rather than treating the terms as interchangeable.

Do I need tuning if my 2015 LML already has an exhaust?

Yes. The seller's existing answer states that compatible ECU tuning is required for the EGR hardware change. Without the proper calibration, fault codes, poor operation or reduced-power/limp mode can occur. An existing exhaust does not establish that the truck already has the required calibration.

Are instructions included, and should a professional install it?

Installation instructions are included in the package, and the existing product information highly recommends professional installation. The work involves EGR removal, intake access and coolant connections. Use the matched procedure rather than treating one owner's installation time as a universal estimate.

What should be checked around the seals, clamps and fasteners?

Compare the supplied hardware with the packing list and check seal condition, clean mating surfaces, fitting seating, hose routing and clamp fit against the instructions. If a fastener does not engage correctly or a connection does not fit, stop and resolve the mismatch with the supplier rather than forcing or altering it.

Will every LML gain 20% in fuel economy?

No. The existing description states gains of up to 20%. Actual fuel economy depends on engine condition, calibration, load, route and use; the maximum is not a guaranteed result for every truck.

Does this replace a complete DPF/DEF/CCV package?

No. This is an EGR valve and cooler hardware listing, with selected pipe combinations. DPF, DEF, CCV and calibration requirements are separate parts of the complete vehicle configuration. The base EGR kit does not replace those systems or diagnose their faults.

Is this kit for public-road use?

It is marketed for off-road/race use and is not for public-road emissions-controlled vehicles. An off-road label does not itself create an emissions-law exemption. Confirm applicable requirements before purchase or installation.

Emissions and Use Notice

Removing or disabling emissions controls can violate applicable law. Review EPA emissions-tampering guidance and applicable local requirements before purchase or installation.