im getting either one
but i need to know which one is quieter
i dont like too loud systems
i like it to be a little bit louder than stock
thanx

 

The Cattman is definitely quieter. I have it. This exhaust is not quiet with a Y-pipe, but will still be quieter than the Greddy. Pics on homepage

 

if i put a y-pipe ,will it sound like a fart can (civic)
thanx

 

No maxima, has ever sounded like a civic. It just cant be done. It will sound very deep and mean with the Y-pipe.

 

alot of people are telling me that there not legal

 

Y-pipes are not street legal.

 

why??, does it eliminate any cat??

 

A couple precats actually.

 

I have the Cattman entire exhaudt system...except for the muffler. It was pretty quite but not quite enough for me (my teenager love it) so I put the factory muffler back on. You can tell it is after market when you get on it.(but then it is too late for the other person)