I have a 2002 GMC c 7500 bucket truck with the 8.1 l .. will this work with this truck .. ( Ryan Calvert, 10/09/2026 )

Yes, that vehicle should be compatible. Please send your VIN so we can verify.

Hi, was wondering if you, do you need to use higher octane gas with this tune? Thank you
Jerry ( Jerry McManus , 04/06/2026 )

No, just regular gas.

Hello,
I have a 2003 avalanche 2500 8.1
I'm interested in getting this ecu. I have some exhaust and things done. what I wanted to know is I'm adding factory electric fans from like an 2006 and the harness/module that's pinned in to the ecu can you turn the fan control on in the ecu if I purchase?
The next is I have 35s (35x12.50r16) can you change that from the ordinal 265/70r16
Thank you. ( Brian, 12/11/2024 )

Yes, we can accommodate both requests. Just include this information when making your purchase.

Is it 50-60 hp with no other mods but the ecm ( Jeff, 05/23/2024 )

That is correct!

We already have a Banks exhaust system instaled on our 2004 W22 based RV. Will this work with the Banks system? ( Ashley, 11/02/2023 )

Yes, this is compatible with the Banks system.