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L5P duramax custom tuning
Hello. I am new with HP Tuners and I am looking for some nice tuning that brings more power to my truck. I already got the stock file, the only I modify is a speed limited. I want to change some parameters to get more power but like I am new in this I don't know exactly what needs to be changed...- Gab
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- Replies: 10
- Forum: Duramax Tuning, Logging, and Gauges