Originally Posted by Six0~Stroker
Any towing is too heavy for the 80 tune...
If you tow at all you will see the best benefits with the 40
Also, If you do not have ARP headstuds, I would NOT tow anything over 2k# in Eric's extreme Street tune.... That is the exact reason I just tore into my engine last month
If you intend on towing anything over 5000k on erics extreme street you are asking for trouble IMO. The extreme street file is not written as a tow tune and will not perform as one.
This paired with any FICM tune when towing anything other than light (< ~5000lbs) i wouldnt do with my truck because of the extreme performance nature of the ECM tune
Originally Posted by a2elvis
Go with the 40HP
The 80 does run hotter than the 40, we have seen this time and time again. Not to say it can not be done with the 80 or the Herc file as we have seen it sucessfully done multime times.
If you plan to tow a lot, we would recommend the 40.