Look I'm with the original poster. I have plenty of money to dump into the exhaust but I don't want a 4k titanium exhaust I don't have a Ferrari and I accept that. I bought the car because it's what I wanted. However I want to tweak it just a little to be mine. I actually like the stock Nismo exhaust.
I'm just trying to get a 2.5 all the way through before I go have mine tuned. GL original poster here's what I've found so far
Garageline = TurboXS 500 a little louder than stock a lot of good reviews (out of stock) if you find this anywhere in stock let me know please
CNT 500 people give it decent reviews.
Top speed 500-700ish
Just a few I saw while looking for what I want. I'm looking for exactly what garage line and turbo XS make a 2.5 inch system I can bolt up to my berks back to my Nismo Muffler. Hope this helps some. Get what you like, not what others want for you!