Wil

Getting either a O/R H Pipe, Pro-Chamber, or a catted high flow h pipe.

For some reason, no one seems to have Pro-chamber on S197 mustangs, do they sound good on the 3V motors? I remember when I had my 01 GT, everyone would recommend them, now, not so much.

I know the catted h pipe would pass emission and would make my life a little easier but if I ended up getting the high flow cat h pipe, is the sound better then stock? The main reason I'm getting it is because my magnapacks seem too quite for my liking. I don't want crazy loud but want a little more.

I want to order it this weekend, advise would be welcome.

adj86

I'd go for the O/R H, if you don't mind changing it out everytime you have to do emissions testing. I had the pypes O/R H for a while and loved the sound. Obviously without cats your going to throw codes. I have high flow cats and I think they sound better, and the guys at the exhaust shop said it sounded better than a set of longtubes with OEM cats. Obviously we have a different setup so not really a direct comparison, but thats my .02

2007CalSpec

I have the o/r prochamber with MAC axle backs and I love this combo. Biggest compliment I've had was someone saying they thought it sounded like an SN-95 coming down the street.