got a 4.8 silverado and wanna bump up the power a bit, I like some of the edge tuners but they say 91 octane, also looking for something with preloaded tunes. what would you reccommend?

 

The tuners or programmers won't do much for you except change shift points really. Look into autocal from blackbear if you want somethin with multiple tunes. They're a custom tunin company out of California and are the best ones for chevy's

 

2nd Blackbear.

 

actually the most reason i want one is to remove or reduce torque management, which tuners will do this, i really like the diablo intune but not sure if it does that