yeah... but, 2.5" is gonna lose all low end torque. cruising at low engine speed, the exhaust will become somewhat stagnant in the pipe, causing a buildup of low velocity exhaust to interfere with the high velocity exhaust coming out when you punch it; hence causing a studder or lag and diminishing throttle response. sure, it'll breathe really good at high rpm, but the throttle response will really suffer at low rpm's. having low velocity, stagnant exhaust in your exhaust system causes backpressure. all i'm saying is 2.5" seems a little big, and i think 2.25" would've been better. actually, i believe i've heard people reccomend 2.25" for h22's on here before. keep in mind, i'm not a mod or a tech, but all i'm saying is that if you plan to cruise around in this car, you will notice these problems..... however, if you're gonna tear through the gears and keep the rpm up every time you drive this car you won't have a problem.
just my two cents.