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stealth 2

  1. Quadzilla S2/ Egr blocker plate ????'s

    Performance Upgrades
    I recently purchased the Quadzilla S2 and just put on the 5" mbrp Straight pipe today, i was wondering if i need to have the egr blocker plate installed in order to run Quadzilla's Offroad tune that blocks the Egr codes. I want to do so because the Service light is annoying to look at, but...
  2. What am I doing wrong

    07.5-10 LMM Performance Parts Discussion
    Ok, I just installed a DPF delete pipe. I have the Quadzilla Stealth 2 programmer and I have already downloaded the DPF delete tunes. After installing the pipe, I tuned the truck with the "50HP no DPF" tune, but I still have the check engine light on. Any ideas about what I'm doing wrong...
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