2004.5-2005 Chevy/GMC Duramax 6.6L LLY EGR Valve/Cooler Delete Kit SD-EGRD-LLY


Product Highlights:

6.6L LLY EGR Valve/Cooler Delete Kit

This 6.6L LLY EGR Valve/Cooler Delete Kit  is for your 2004.5-2005 Chevy/GMC Duramax.  Competition tested at over 700hp the Sinister Diesel EGR delete is a must have for your drag or sled pull truck. Every EGR delete kit is manufactured in house from 304 stainless steel and billet aluminum.

Product Highlights

  • Does not Require removal of turbo, intake manifold, or up-pipe
  • CNC Machined Billet Aluminum and Stainless Steel
  • Completely Replaces EGR System, No other Parts Required
  • Includes detailed Installation Instructions
  • Fits on 2004.5-2005 models.


We had our own vision about how a part should perform, and what it should look like, so the Sinister Diesel brand was born.” Most of these Sinister Diesel parts are a stylish and distinctive metallic blue. “We call the color Sinister Blue. You’ll even find it in our logo.”


*Race Only*
**This product is not legal for sale in the province of Ontario for road/highway use. Please check with local and provincial legislation/regulations for legality of such product/s.  We assume no liability for misuse of this product/s.**

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