Just got an HR y-pipe here. The difference in sound wasn't that big IMO. Definitely way more of a difference when going to a coupe midpipe from the stock one. But the difference in performance does seem noticeable. Not in the low end, but in the 4500+ RPM range it seems to pull harder just like the dyno shows. So if you're looking for sound, get a coupe midpipe. High end performance, get the HR y-pipe

 

I'm getting my y pipe from a local seller next week for next to nothing woo woo.

 

Got my HR y pipe from officerdbag installed it along with the revup airbox seems like the Z tube, revup airbox, HR y pipe, coupe midpipe and the HKS muffler work well together. I'm happy with the results

 

^ i plan to do the exact same thing except with a fujitsubo muffler instead of the HKS to keep it quieter.

 

I'm debating between the HKS muffler and Hi-flow cats.

I haven't done much research on the muffler benefits, but I'm pretty sure the cats add a substantial amount dollar for dollar, I think the berk cats cost about the same as the muffler, go figure.

To me the muffler is just for the bling, it may be a better idea to run cats and have the muffler exterior polished, then altima muffler tips...

 

Booyah! Installed my HR y-pipe today. I haven't had a chance to really get on it, but it really does sound deeper w/ the coupe middy/stillen intake/5-16 and knock off MREV2

 

Just got mine installed cheap last week by a local mechanic.
The throttle is def more responsive and cleaner.
Sounds the same to me, but worth the $130 I spent for the pipe and install.
It doesn't lag as much as before when I get on the gas now.
It has actually made shifting through the gears easier, I'm no stranger to MT but the clutch on these rides isn't the easiest to master.
If your like me and don't have the tools or space to do the install yourself go to your local mechanic, don't bother with the stealership.
It should cost $30-$40 and take about 20 min.
It's a really simple swap if you have the right tools.

 

Installed mine on Sunday in the parking lot at work, they have covered parking. Feels good, sounds good, it's good!

 

Where are you guys finding these?

 

I lucked out and found one from a local az350z member who regularly drives a truck from Phoenix to Denver, CO. He picked it up in Denver and tossed it in the back with his load for work lol.

 

I've actually had mine for months.
I finally decided to go with the HR y pipe and HFC instead of aftermarket catback exhaust.
Best place to look is on this forum and my350Z.

 

Been looking on here and my350z for a while but ppl always beat me to it

 

Great info, thanks for the post.

 

thats how i feel

 

I did mine in my driveway last January in the wonderfully cold PA winter.