1)Predator U7185
2)Rev. 2.02
3)2005 GMC K2500, 6.6 LLY Duramax

First of all, I was wondering what improvements I'll see by sending the Predator back for an update to the current version. Is it worth the $100. ??

Secondly, I installed the tune along with an S&B intake and 4" "turbo-back" exhaust ...