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  1. General
    So is DOD active on the short wheel base 2007 Envoy Denali ? Seems I read somewhere they disabled it due to inability to properly muffle it in the exhaust on the short wheel base trucks.
  2. Engine Tunes/Mods
    okay to start I have a 06 Trailblazer with the 5.3. I had a DOD lifter fail on me so I did the DOD delete. New PCMofNC Rob style cam LS7 lifters LS7 valley pan replacement new valve springs PCV delete PCMofNC mail order tune everything else is stock. I'm getting some valve train noise after...
  3. OEM Issues
    I need to find a replacement for mine. I don't have $7k+ to put into it, I do not want to go Jasper, and I am having trouble locating anything used. The closest I found was from pickups, but the mechanics don't know what makes it different to chance the swap. I was also under the impression...
1-3 of 3 Results