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
BurbMan wrote:
Looks interesting. I'm of the opinion that if GM thought they could have tuned it to make more power *reliably* they would have done it right from the factory. I've got 182k on the truck now, motor has never been opened.
From what I understand, the 8.1 was tuned "normal" from 2000-2002. For some reason they "detuned" the 2003-2006. Some say it was because they were trying to promote the duramax. I've got about 190k on mine and it runs perfect. I would never turn down reliable TQ,HP and MPG increases though.
