1. sliding-r

    Look at the Difference an Exhaust can do once mapped!!

    Hi, some of you may know that i had my car mapped about 2 months ago by Steve from FC Tuning. But at the time i had a Greddy system on the car that was designed for a spec-S im leading to believe becaust the exhaust was only 2.5" but after further investigation it would restrict to like an...