my car is 03 sedan AT. i have no resonater or muffler box. so it is basically straight pipe from the cats. it has a nastttyyy rattle noise when i go over 3000 rpm. i want to lower the voice a little bit nd get rid of the nastyness. i know that test pipes will only make it lowder. my question is, will 350z or g35 coupe x pipe fit on the sedan? Will i need to do any modifications to get them to fit? Also what difference will I see if i install the x pipe? thank you for your help

 

Y pipe?? No 350z or G35 came with an X pipe.

 

the g35 Coupe will.. I'm not sure if the 350z one will fit tho.. i dont think so..

i also had a question similar to yours.. i wanted to know if the 350z HR mid pipe would bolt on to our g35 Sedan's??

 

Yes

 

The Y pipe is the same on all models Gs and Zs g23nismo.. No difference until 07-08 350z, which in this case still fits our sedan's and coupes.. The flow is slightly better in the 07-08 350z MODELS, and of course the 07 g35 sedan HR engines..