Mods: i/h/e, mid pipe, engine damper, 11:1 pistons, greddy e-manage ulti.
Before i go on further, yes you do have to run higher oct. gas with the pistons, and yes it is a pain to install.
I don't know the gains of the pistons or e-manage only together combined with other mods. Before i was dyno'd at 96whp and now i'm at 128whp. Roughly 40-45whp gain from stock. I plan to go to the track this week and i'll post results from that.
I am moving out of my house next week so any questions reguarding the set up or anything else, ask me this week. My computer is still down (using parents) so i probably wont have computer access for a few weeks until i get my lap top.