Help me out with an H pipe

Prochamber gives a bit more performance upgrade... As for how the o/r h-pipes sound, they sound pretty good. But if your like me, and have to have emissions done on your car, it's not really worth the hassle of swapping mid-pipes for emissions. Not that big of a difference. Not to mention you can't leave your car idling for more than 10 minutes without tears formin' in your eyes lol. Got out of my car to wait for a friend last weekend, and man, after a few minutes the exhaust was killin' me lol, was afraid to smoke a cig