wondering if anyone has dabbled in tuning the trans to get that double overdrive that they have in the lbz?
i know that duramax tuner has a kit but you have to buy their valvebody and tcm together...
Type: Posts; User: protrac
wondering if anyone has dabbled in tuning the trans to get that double overdrive that they have in the lbz?
i know that duramax tuner has a kit but you have to buy their valvebody and tcm together...