my vehicle is a rev up and i also have the hr y pipe.

the results your reading are the same for rev up. but for the rev up and hr setup i have to say that my top end is great, and the engine just keeps on pumping with more engine growl.

Hmm didn't even notice that...guess I could be one of the first coupes if I pick up the part today.

Go for it Adam! Worst case scenario...you change your mind and sell it in 3 seconds lol

I installed the HR Y-Pipe on my TB06 Sedan AT. As everyone has mentioned I did notice more response in the low to mid range and love the way the car sounds how too. Thanks DaveB for this find. OEM fitment and quality.

I feel the same way! Wish we had rep points on this forum. I can't wait to hear how it sounds with my new Berk HFCs I just got this afternoon!

I'll have pics and videos when I get them installed tomorrow for sure

Are any additional bolts or nuts required?

nope, its a perfect fit

How many miles do you ned to get before the ECU relearns this exhaust mod??

I am very interested in the fitment on those HR headers. The design is clearly different.

So.... who's gonna be the first one to try this out? I'd rather OEM parts like everybody else here.

I'd like to reinforce the enthusiasm for the HR headers, yet again. Any progress here? I'm dying to know. Thanks!

I would imagine the supply being low on these but I'd keep checking the classified section.


+1! I don't think anyone's done this yet. My advice, if you're going to do HFCs and want to do this mod, do them both at the same time since they're working in the same area anyway. You'll save on labor cost

My ECU learned I had something different right after the reset. I drove about 10 miles or so that day if I remember correctly and the butt dyno felt a difference in how it shifted especially on the expressway ride home.

I'm actually going to reset my ECU again this afternoon since I haven't had the chance to do it since my Berk HFC install earlier this week.

I know how it drives now. I'll let everyone know how it drives after the reset and if the Berk HFC+ 350z HR- Ypipe combo reacts differently afterward

Did anyone follow torque specs or just tighten the thing down? Picked up the y pipe from my dealer for $50 yesterday gonna install it now.

Adam, I had a shop install both my HR Y Pipe and my Berk HFCs. I believe they torqued the bolts properly .

Update:

I reset the ECU a couple days ago and found my car to be a little more responsive than before the reset. I'm driving a 5AT. So for me I'm able to test in Auto and Sportshift modes.

I recommend people reset their ECUs after both mods mainly the HR Y Pipe mod

07-08 350Z HR headers
Exhaust manifold, 350z, right 07-08 (retail)$500.17 (their cost)$385.13
Exhaust manifold, 350z, left 07-08 (retail)$500.17 (their cost)$385.13

$770.26 for 350z HR headers

08 G37 Coupe headers
Exhaust manifold, g37, right 2008 (retail)$467.31 (their cost)$359.83
Exhaust manifold, g37, left 2008 (retail)$500.17 (their cost)$385.13

$744.96 for G37 headers

Very enlightening.
Does anyone know of any design differences between the HR and VHR headers? They seem to be different parts. At least the right side, for some reason.