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  1. 04.5-05 LLY Performance Parts Discussion
    I’m looking for the right lift pump for my lly, all stock besides 125hp tune, not sure what system to run, thanks!
  2. 04.5-05 LLY Duramax Powertrain
    New heads all new gaskets New valves, new springs, new keepers, new water pump, new Thermostats, mouthpiece’s have been changed upgraded inner cooler upgraded radiator, all new hoses. literally the works have been done. Why is it still overheating
  3. 911 Problems Forum
    Hey All! Just installed my hsp cold side with y bridge, pcv reroute, ppe down pipe, and ppe uppipe. Other mods are dpf delete and ccs tuning. Started truck after installation and got p0090 and p0098. Realized I forgot to reattach the fuel regulator plug (3pin driver side of alternator) and MAF...
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