So I had truck deleted and new exhaust and new tuner! Diesel tech said Its recommended I keep tuner at +30 or +60, and default the rest of the way. He said that changing rail or timing or VGT without new head bolts and transmission upgrades is to risky! Not sure what to do! Want to get most out of what I spent but don’t want to ruin my truck? Any advice would be great as just yesterday I was looking up the meaning of VGT, wot, timing, rail pressure LOL so pretty much a dumb *** to it


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