Have leak in my y pipe and I have to change it what the best brand you guys recommend and if I need to run a exhaust sound in future will the y pipe matter to which brands !!! Sorry I'm new to the G's !!! Pics will be so helpful

 

https://g35driver.com/forums/intake-...p-y-pipes.html

Here's a link to start with, your going to want to learn to search these forums before posting because 90% or more of any questions you'll have about your G have already been asked and answered here, several times.

From all my research I decided to go with Motordyne for everything exhaust related on my g35 just fyi