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just a mail order tune and some tweeking by me.

Hello all,

i have an dbc N/A 408 with an 244/248 .631 cam long tubes fast 108 intake 4l80e. It runs fine except for on deceleration, when I'm making a stop it will stumble then stall down to...

Thank you

Hey turboffr,
Did you get this figured out im having the same issue.

Have you tried 3?

Thank you. Will do some searching around on the GEN4 side.

Morning,

Does any have or know where I can find a towing tune for a stock 2014 Sierra 6.0/4l690 4wd? I will be adding smooth intake tube and electric fans nothing serious. I would like a little...

Hello,
Rell here from Maryland's eastern shore
Little to no experience with HPT hoping to gain some knowledge from you guys!