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Re: Exhaust Back Pressure Readings
Posted to HD/Fleet Forum on 5/18/2020 5 Replies

Hello Jonathan,

The tune in this truck is from a "three letter company" that also sells a dog brand of tuner : ) The tune is an off the shelf program and not custom. I have been attempting to get through on tech support both by phone and by email for a week ... Login to read more.

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