XDP LMM EGR Blocker Plate XD154

2007.5-2010 GM 6.6L Duramax LMM
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The XDP LMM EGR Blocker Plate XD154 is designed to block the Exhaust Gas Recirculation (EGR) system on your 6.6L LMM Duramax. The EGR system recirculates exhaust gases back into your engine. During this process, carbon build-up is also deposited in your trucks intake system. After time, carbon accumulation can restrict your engine and hinder performance.

Installing the EGR Blocker Plate prevents hot exhaust gases from recirculating through your engine. Once installed, the Blocker Plate can be easily reversed returning your truck back to stock. Its slotted design reduces install time by allowing you to simply "slide" the plate in place without having to remove any major components. For off-road use only.


  • Prevents Further Soot Accumulation
  • "Slotted" Design For Easy Install
  • Simply Blocks EGR Flow, No Components To Remove
  • Easily Returned Back To Stock

Note: Installation of the XDP Blocker plate will cause EGR related DTC trouble codes. Aftermarket tuning is required.
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(9 Ratings, 1 Review) Average Rating:
Simple installation
Brian (Virginia) 2/17/2015 8:35 PM
Blocker plate slid in and sealed with absolutely no modifications to the plate required. Loosen the 2 12mm nuts, 1 from the top and 1 from the side with the fender liner removed. Use a long pry bar to create enough space for the plate. Make sure the gasket is to the rear towards the pipe and slip the block plate in from the top right side and swing it up to catch the top stud. Install top and bottom nuts and tighten and it is done. It is a little challenging working in the tight space but not hard by any means and the plate being cut correctly means it will seal up with minimal hassles.