With a stock exhaust system, would the combination of these two have a significant change in noise level?

Also, what sort of gains can I expect w/ these? (Only other perf. mod is an Injen)

 

Here's Cattman's thread which includes a dyno with his Y pipe and stock exhaust.

http://forums.maxima.org/showthread....hlight=cattman

 

Cant comment on the CM straight pipe, but i love the way the y-pipe sounds. Nice and throaty, not loud at all. Kinda like a quiet 350Z

 

As long as you maintain the OEM exhaust the noise levels will be low; which is exactly what I want in my car. I just installed the Cattman Y and also have the Injen intake with the stock exhaust. The noise level and tone seems almost the same to my ear. Next is the Cattman B-pipe....

 

thanks fellas, just what i wanted to hear

 

George, ma homie, why the straight pipe? why not just cattman y alone or cattman y & b combo???

 

Sup bro, I'm getting a good deal on the set off another member

 

no sound difference here

 

I have the Straight pipe, very little sound difference. I cant tell any increases, maybe a little more burbly at idle? Its resonated, so that takes care of noise that would otherwise be present