[zacknafei]

what is the difference in the different years, what will work with what? and so on

also when someone is using a non stock outlet flange for a turbo
(like the one william was selling) eleminating the stock 02 elbow
do you still use a 02 sensor? and what is draw back to not running an 02 sensor crappy hi-way mileage?

thanks alot for the info