GM 6.6L Duramax LML EGR Delete Shim Kit (2011-2016)

The GM 6.6L LML EGR Blocker Shim Kit provides a cost-effective, straightforward method to block the EGR system on 2011-2016 GMC Sierra and Chevy Silverado 2500/3500 HD trucks with the 6.6L Duramax LML engine. Built from long-lasting stainless steel, this kit must be used with emissions-off tuning to function correctly.

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Vehicle Compatibility

• Years: 2011-2016
• Makes: Chevrolet Silverado, GMC Sierra
• Models: 2500HD, 3500HD
• Engine: 6.6L Duramax LML (diesel)
• Body: Pickup

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Key Features & Benefits

• Full EGR Shutoff: Stops exhaust gases from being routed back into the intake, helping cut down on soot deposits and supporting more consistent engine operation.

• Straightforward Layout: Utilizes precisely cut stainless shims for an easy, no-nonsense installation no complicated parts or major modifications required.

• Heat-Resistant Stainless Construction: Manufactured from corrosion-resistant stainless steel to handle extreme temperatures and provide a long-term EGR block-off solution.

• Cost-Effective Solution: A low-cost alternative to full EGR delete kits while still providing a solid way to shut down EGR function.

• Quick, Simple Install: Only shims are used—no extra hoses, piping, or brackets—making this one of the most straightforward EGR block options available.

• Emissions-Off Tuning Required: Intended for off-road/competition use only and must be paired with emissions-off tuning to prevent fault codes or limp mode.