nismo h-pipe
 

Is it worth it to change the h-pipe on my 2013 nismo z. I want to run test pipes and a larger dia. h-pipe. mainly for a better sounding exhaust and hp gains. or should i just go test pipes and thats it. I'am not looking to do a whole catback. Also does anyone make a affordable h-pipe. got a quote from aam for $425 shipped. Heck i paid $200 for a y-pipe for my 04 350z 304 stainless tig welded.

I would get test pipes and a new axle back, replacing the mufflers. That would make more difference than changing the H pipe.