Long story short I need to replace my Y pipe, the issue is I'd prefer not to spend what my local Nissan dealership wants to charge me for a replacement but I can't find any aftermarket pipes with a 2.5" outlet for my exhaust. What options do i have (aside from craigslist which I've been checking often) to find an alternative without choking the pipe from 3"-2.5"?

 

To clarify, you're looking for an OE size Y-pipe (2.5") because the Invidia is a 2.5" Y-back setup, yes?

What year car? If pre-'07 (non-HR), it pays a little to find an HR Y-Pipe. Flows a little better than the DE unit. If you can't find one and don't want to pay for a Nissan pipe, look at OE replacement Ys... like this:

https://www.partsgeek.com/26v3ggr-ni...Exhaust+Y+Pipe

No clue on quality but a company as big as Walker can't be terrible.

courtesyparts.com (and other OE Nissan houses) sell the Y-pipe for around $440.

 

Yes you're correct on the first point, and it's a '07 HR, thanks!