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  1. Seventh Generation Duramax Electronics/Tuners
    First Diesel truck.. 21’ Chevy 2500HD L5P. So all my coworkers either own F250’s / 350’s or Cummins. they are all deleted. They all have bad @$$ performance. And sound freakin amazing. I literally brought this truck home last night and trying tgain knowledge on the unit. And upgrade / delete...
    2021 delete help l5p
  2. 3.0L Duramax
    I have a 2021 Yukon Denali w/ Duramax 3.0. It also chug, chug, chugs at Key-Off. The exhaust becomes loud intermittently, usually after exiting the highway. It can be annoyingly loud when idling through a parking lot. It can go away; or last until I start it the next morning. Has anyone ever...
    2021 3.0l noise
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