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straight pipe

  1. 11-16 LML Duramax Powertrain
    I have recently just bought my 1st diesel pick up truck. I noticed the truck smokes quite a bit but still had a dpf on it. I have drove over 1000 miles and the DEF still reads full, and there's cut welds on the DPF. I've come to the conclusion the DPF is gutted and the truck is tuned. I bought...
  2. 11-16 LML Performance Parts Discussion
    Just finished up the custom exhaust on my truck, what do ya think??
  3. Performance Upgrades
    I have seen this question asked several times on this forum but with no real answer so I thought I would go ahead and remove my muffler, straight pipe my truck, and see what difference I see in EGT's so here it is. Driving around 70 on the freeway my egt's use to sit around 700-800 depending on...
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