So i want a full length h pipe and its gotta be catted. All I know is MRT , what else is there. Also , would this really sound any different than the stock hpipe in my 00' gt? I know its bigger diameter but its catted so will it sound better?

 

Not sure on other brands. The sound will change and any cats you get will more than likely be high flow. But whether the new sound it makes sounding good is an opinion, I would like it though.

 

The only catted h out there for shorties is the MRT. I have it and it's a nice piece but pretty pricey. It's louder than the stocker too.
If I could go back now, I would just get an x. I like the sound better and I could have saved about $200.