Pontiac G8 Forum banner

Discussions Showcase Albums Media Media Comments Tags

1-1 of 1 Results
  1. PCM Tuning / Dyno Results
    So I changed the oil for the first time tonight and also tried out the SC Cortex tuner. I have a couple of questions: 1. Having the shift pressure at 100% of the Superchips value seemed really really harsh. Every gear change slammed the car forward, even at light throttle. Did one full...
1-1 of 1 Results