Originally posted by MikeR
a pretty signifagent amount, dont have any dyno sheets but i mean damn, my oem was clogged and i installed a test pipe, and the difference was night and day, to bad test pipe isn't street legal, my high flow cat did improve it though
i have a 94 ls w/ 80k miles. do you have a random tech or carsound? im not sure which one to get