question on exaust

[jbling]

is it worth replacing the y-pipe befor the catalitic converter or will i be good just replacing the mid bar and muffler???? i drive a 97' maxima:nixweiss

 

[imported_memnuts]

is it worth replacing the y-pipe befor the catalitic converter or will i be good just replacing the mid bar and muffler???? i drive a 97' maxima:nixweiss

Replacing the stock Y-pipe with an after-market hi-performance one will not increase exhaust flow unless the system after this component is also enhanced. To get any benefit you must also replace the exhaust after the converter ( cat-back system ). If the car has over 50,000 miles you can also replace the cat with a hi-flow unit. If you have to choose between the y-pipe and cat-back the cat-back would be the only way to go. Maximum gain for increase exhaust flow can only be realized if you also include headers.

Hope this helps.