Right, that's the whole purpose of this build actually

Are you currently on stock cats? Replacing the stock cats with anything other than the stockers will dramatically increase exhaust volume, and change the exhaust note

Hey Khoi,
I was wondering what is the biggest resonators we can fit in the mid pipe so that if we go high flow cats with short tails and this new mid pipe/x or h pipe it won't be raspy or hissy just deep and very true and clean to the VQ sound. Also I was wondering why not a X pipe won't that give better flow patterns and get more exhaust out. Thanks

Sorry guys, vertical video fail :(

Eta?
 

Khoi, can we get an ETA on the mid pipe? Also has the short tails been dyno tested? Is there an increase in whp other than just sound? How much WHP was gained with everything else stock and just the short tails?

Also, check PM:tup:

Do you have that as your DD?

Anyone have a (quality) video with the short tails and resonated test pipes?!

I saw one on youtube but he put the camera directly in front of the tips, so it was all distorted.

4whp increase i believe. That was without a tune.. i think we lose -1 tq or something like that

Not yet. What did you have in mind? I have a gopro hd2 I can put on the car. Just let me know placement preference and I'll go make a vid.

Edit: this is not my DD

GoPro mounted to the back window facing towards the windshield is a great shot and sounds perfect. Under the car is a little too distorted.

But my GoPro sounds perfect in my car

I was under the impression that the short tails have no factory supported dyno charts/power loss/gain, i.e. that AAM did not specifically dyno their 370Z to find numbers.

If anything I would suppose that there would be some mild horsepower gain and mild torque loss, but not anything more or less than 2 each.

http://www.the370z.com/intake-exhaus...sults-3hp.html

That gain is so small that I would not count it as being statistically significant...

I agree with Phil, a difference in a couple whp is probably just the dyno reading inconsistently

Currently there is no ETA on this midpipe guys, sorry I know I know.. I'm doing my best to push it but this month has our production team slammed

WOAH. Cranks the short tails up from a 6/10. To a 9/10 as far as sound.

Crazy

I'd like to hear resonated TP's w/ the short tails. I've still got that really annoying "rattlesnake" rasp around 2-3k when the car is cold. That might be a characteristic of all TP's though.

I heard good things about the resonated test pipes..

I think I would be one of the first to do that combo..

heres another video with non resonated test pipes
http://s70.photobucket.com/albums/i1...t=CIMG1583.mp4

It doesn't really sound that bad at wide open throttle. You can tell there's a little rasp, but it doesn't sound anywhere near like marbles in a can, tinny / metallic.

Resonated test pipes will deepen the tone and remove a little rasp, but probably not all of it.

Getting my custom Hpipe made tomorrow. I will post sound clips as well! :driving:

I went for an xpipe instead and i am very happy with the results. The car is significantly quicker in all gears.

http://www.youtube.com/watch?v=uYolbI21750

lumpy looking pipes and horrible welds in that pic.... best of luck with it.

i remember a thread about a company going back and forth with X/H pipe configurations and found the X to make the most rasp. when i have time ill search for it.

looks like crush bent pipes and those welds.. look scary

Thanks for the comment Fuct. I only paid 120 for this and its not done yet. I have 2.5 inch flex pipes on order. Xpipe will sound the best when I upgrade to Meisterschaft Axel back.

I wish you guys made the Hpipe for us Nismo guys Khoi. But for now this will have to suffice. :(

here are the pics and video was not made (due being busy at Nissan) but will be in progress makin the video real soon!!! Enjoy!
http://www.the370z.com/members/thezm...7051-image.jpg

http://www.the370z.com/members/thezm...7052-image.jpg

http://www.the370z.com/members/thezm...7053-image.jpg

sneak peek video for tonight

Custom Mid pipe with AAM short tails - YouTube

Have a great night!!!

Thanks
Tim Mundy

those crush bends will cause you to lose potential power. it will also screw with your exhaust sound. poor welds break or crack. ether way, it isn't perfect, but for that cost, not bad.

Khoi, any updates on this?

bump from the dead!!

update as of 11/12

1) the GT-R that is on the R&D lift will be finished by the end of this week
2) the shop 370z will go on that lift as soon as the GT-R comes off.
3) We may be making revisions to our true dual system,
4) We will be revising our H-pipe to be an oem replacement for Nismo guys, so they can upgrade their stock H-pipe if they would like to a full 2.5" H-pipe
5) After the H-pipe is redesigned, we will piggyback off of that to design the midpipe portion to connect to either the short tails or stock rear section

We have a customer that will be coming in to get tuned, he's going to be the first car with the new set up. He wants to get tuned in the next few weeks, so we do have a deadline to meet for him! He already has our test pipes and short tails, so we will most likely put on the "ultra quiet" muffler style resonators in the midpipe for him so he doesn't go deaf!

I'm super excited and thank you all for being so patient!

Make some titanium ones!

Are you talking about titanium piping? Titanium is great and all but it requires a different kind of bender, welder, it's more expensive, and it's louder.. a lot more to deal with just for a few lbs of weight savings

just replied back to your email :tup:

mods: cosworth drop-in filters, z1 post maf tubes, berk test pipes, aam short tails

baseline: 277hp/234tq
final: 293hp/248tq

NICE! Sounds LOUD!

wow not bad! I bet with upgraded midpipes and a cold air intake you could squeeze out some more power out of that set up :tup:

Oh definitely. The tuner said upgrade the mid-pipe/h-pipe and get smaller wheels and I'll break 300 easy.

Any update yet?

Sent from my DROID4 using Tapatalk 2

370z goes on the lift today :)

the GT-R made 1320whp with our new prototype turbo kit haha crazy power

What do you do with that? Chase down intercontinental ballistic missiles?

Nope they make others at the track with cars costing 3,4,5,6 even 7X as much jelly as they blow the doors off them in there NISSAN!!!!!! I LOVE IT! I love the GTR's that are pushing 1000HP+!

Still interested in the Hpipe for my Nismo! :tup: