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2500HD 8.1/Allison tune?


89Z24

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I've got a 2004 2500hd with the 8.1/Allison that I tow my rock crawler with and was looking to get a tow friendly tune to help it out some. Anybody around town that you guys would recomend?
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Putting a box tune on a vehicle that will be towing something is a terrible idea. Brian has seen ecoboosts come in with lambda set to 9.7:1, so if you want to lose economy and power go for it. I've never had much luck with one of those handhelds.

 

Call Brian and see what he say's, I'm sure he'd be more than happy to answer your questions when he has the time.

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