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Interest Thread: AAM Competition 2.5" H-Pipe + Res Mid-pipe to shorties or stock rear

baseline is with AAM Competition S-Line Short Tails only second dyno is with AAM Competition S-Line Midpipe in addition to the Short Tails Hey guys, This thread has been inspired

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Old 08-17-2012, 09:33 AM   #1 (permalink)
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Default Teaser: AAM Competition S-Line Midpipe (2.5" H-pipe/intermediate pipe)


baseline is with AAM Competition S-Line Short Tails only
second dyno is with AAM Competition S-Line Midpipe in addition to the Short Tails

Hey guys,

This thread has been inspired by edubs and a lot of others who have asked if we've made a mid section from the cat to connect to the short tails (which would ultimately bolt to the stock muffler as well)

I'm simply a mediator and this product will be inspired and designed by you guys! the 370z community!

We currently already make 2.5" H-pipes for our true dual, we will piggyback off this and design the midpipe to connect the H-pipe to the rear section. Our shop 370z goes on the lift today 8/17 for measurements of the midpipe!

The goal:
  • 2.5" H Pipe and 2.5" Resonator mid pipes to bolt onto short tails or stock rear section
  • This set up mating to short tails WILL be loud
  • This set up mating to stock rear section should be close to stock

The purpose:
  • Upgraded Y and Mid section 2.5" vs the stock 2.25"
  • For those who have Short Tails and want to complete the catback
  • For those who want to upgrade their cat back but want to keep sound to the minimal with their stock muffler




Quote:
Originally Posted by Khoi@AAMComp View Post
rear section is done and here are some pics of it tacked up. The h-pipe portion should be easy, hoping to have this all up and running very shortly here guys!!

Smallest set back would be clearance, which shouldn't be any worst than any true dual systems that do not criss cross in the rear. A few reasons why we did it the way we did, 1) least amount of bends, better flow 2) less bends = less welds, less chances of cracking, less labor, less cost!! As you can see the midpipe is almost at the same angle as the rear muffler, shooting straight up, no turbulence there




here you can see the difference in piping size! Our system vs the stock!




straight out





Quote:
Originally Posted by Khoi@AAMComp View Post
rear section wedled up, h-pipe needs the cross piece and should be done here in no time!







Quote:
Originally Posted by Khoi@AAMComp View Post
we redid the intermediate section to have better clearance with the sway bar, pics of the completed H-pipe here!











Quote:
Originally Posted by Khoi@AAMComp View Post
and time to strap it back down on the dyno









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Last edited by Sales@AAMComp; 12-27-2012 at 02:30 PM.
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Old 08-17-2012, 09:51 AM   #2 (permalink)
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repped for the great way for people to upgrade existing systems
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Old 08-17-2012, 08:26 PM   #3 (permalink)
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Very interested.
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Old 08-20-2012, 09:12 AM   #4 (permalink)
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bump!!
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Old 08-20-2012, 09:29 AM   #5 (permalink)
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Interested!
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Old 08-20-2012, 09:39 AM   #6 (permalink)
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interested in a non Resonated y pipe
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Old 08-20-2012, 09:41 AM   #7 (permalink)
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Quote:
Originally Posted by ZKraken22 View Post
interested in a non Resonated y pipe
we would be using our H-pipe that we currently have designed to go with our 2.5" true dual
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Old 08-21-2012, 10:29 PM   #8 (permalink)
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I'm interested but just worried about the drone the shorties has already unless you could give me advice to lower it down on it
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Old 08-21-2012, 10:43 PM   #9 (permalink)
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Sounds awesome! Wish you guys had this back when I was buying an exhaust. Can't wait to hear this setup in person
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Old 08-22-2012, 08:26 AM   #10 (permalink)
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Quote:
Originally Posted by SoFloZ View Post
I'm interested but just worried about the drone the shorties has already unless you could give me advice to lower it down on it
without a doubt the upgraded H pipe and mid pipe will not make the drone any better. With larger pipes this is only going to increase the note.

Quote:
Originally Posted by b1adesofcha0s View Post
Sounds awesome! Wish you guys had this back when I was buying an exhaust. Can't wait to hear this setup in person
can't wait either! our shop 370z will be going on the lift in about 2 weeks to get this project rolling
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Old 08-22-2012, 08:54 AM   #11 (permalink)
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Quote:
Originally Posted by Khoi@AAMComp View Post
without a doubt the upgraded H pipe and mid pipe will not make the drone any better. With larger pipes this is only going to increase the note.



can't wait either! our shop 370z will be going on the lift in about 2 weeks to get this project rolling
Let me know when you're done with it, I'd like to check it out in person. Maybe we could have one of our MD meets at AAM so we can all take a look. Could be like the official reveal
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Old 08-22-2012, 09:43 AM   #12 (permalink)
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Quote:
Originally Posted by b1adesofcha0s View Post
Let me know when you're done with it, I'd like to check it out in person. Maybe we could have one of our MD meets at AAM so we can all take a look. Could be like the official reveal
Trust me I've been pushing this idea ever since I hopped aboard since the Open house was a semi flop because of the rain. As soon as this goes into prototype phase I will keep you guys updated with pics
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Old 08-22-2012, 09:57 AM   #13 (permalink)
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Quote:
Originally Posted by Khoi@AAMComp View Post
Trust me I've been pushing this idea ever since I hopped aboard since the Open house was a semi flop because of the rain. As soon as this goes into prototype phase I will keep you guys updated with pics
Sounds good, I just want to hear it in person since that's the only real way to get an idea of what an exhaust is like.

Ever since I first heard the short tails on Randy's car, I've been wanting the same aggressive sound from my exhaust. Don't want to go through the hassle of taking off my Berk exhaust and then trying to sell it before buying a new setup. I decided that I'm just going to replace the Berk muffler with custom straight pipes, just like how the short tails are. Would have bought the short tails themselves, but they won't fit with the Berk midpipes.
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Old 08-27-2012, 03:32 PM   #14 (permalink)
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bump!
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Old 08-28-2012, 03:02 AM   #15 (permalink)
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Now yes, I do realize this will be extremely loud, bordering on what most people will consider rice/fart can, but I'm curious as to how much of the VQ's raw sound I can extract before I go deaf or get a ticket.

I currently have the short tails, which are a wonderful set of pipes. I think my hearing has degraded recently, but it's a small price to pay for the raw VQ sound!

I'd gladly look for a system that essentially eliminates the factory Y pipe and midpipe for a more free flowing, straighter H pipe configuration. I will soon be installing an OBX Y pipe and some test pipes until this system is developed. Let me get one thing straight though, you are retaining the Y pipe and redesigning the midpipe? Or are you taking out the Y pipe and midpipe, then redesigning them as a single (or two piece) H pipe?

Maybe some 12-18 inch resonators on the midpipe (after the H joint, before the muffler) would eliminate most of the low-RPM drone. Or perhaps create a Helmholtz resonator.
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