8.1 only question
I was just wondering if anyone out there has used this ultrapower ECU? It looks to be geared just right for waking up the 8.1 and gains some MPG. https://www.brazelsrv.com/Ultrapower-GM-Workhors...
Forum Discussion
The Ultrapower tuner was all over the Moho forums in the mid 2000's, never did it to our Workhorse chassis. The 8.1 did fine stock in our 26K moho...stock.
