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View Poll Results: Which system would you go with?
Apex-i N1 9 16.67%
HKS Carbon Ti 3 5.56%
Megan 3 5.56%
Thermal 12 22.22%
Buschur Racing 7 12.96%
GReddy 0 0%
Build your own from various available components 17 31.48%
Other system 3 5.56%
Voters: 54. You may not vote on this poll

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Old 07-17-2007   #21
gofastman
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Re: Exhaust Opinions

Quote:
Originally Posted by 1ViciousGSX View Post
Hmmm. 3.5 inch? I would like to know if there is a "real" difference between 3.0 & 3.5 inch exhaust systems?
a 3.5" pipe has about 27% (26.530612244897952% ) more surface area than a 3" pipe...
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Old 07-17-2007   #22
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Re: Exhaust Opinions

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Originally Posted by DBMajik View Post
Yeah, but then it deadens velocity.
So?
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Old 07-17-2007   #23
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Re: Exhaust Opinions

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So?
Not that I'm as deep into fluid dynamics as you; but isn't it good to at least have some back pressure on a turbo car?
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Old 07-18-2007   #24
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Re: Exhaust Opinions

The turbo provides more than enough back pressure. You want as little as possible after that, it is an NA car that will need some back pressure. And velocity does nothing for the exhaust once it is out of the turbo unless you are trying to shoot it out fast to act like a jet engine and propel the car :P
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Old 07-18-2007   #25
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Re: Exhaust Opinions

The less exhaust after the turbo the faster it spools and the more power it makes. The best turbo exhaust is none at all.
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Old 07-18-2007   #26
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Re: Exhaust Opinions

OK then, custom 3.5 for me it is.

Thanks for the opinions and info.
-Mike
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Old 07-18-2007   #27
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Re: Exhaust Opinions

Since nobody else asked, what turbo is on the the car that you need more than a 3" exhaust?
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Old 07-18-2007   #28
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Re: Exhaust Opinions

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Old 07-18-2007   #29
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Re: Exhaust Opinions

Gt45r
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Old 07-18-2007   #30
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Re: Exhaust Opinions

You'll have to post some pics up when it's done! Do you plan on running a muffler? I think old man Hill's is all just straight 3.5", maybe a resonator. Pretty loud none the less!
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Old 07-18-2007   #31
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Re: Exhaust Opinions

It won't be as "bling-bling" as everything else 'cause I'm not crawling under there to clean it. ;-) Will have a nice muffler and tip though.
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Old 07-18-2007   #32
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Re: Exhaust Opinions

Why not one-up the supra and diesel truck guys?! Go 6" or go home.
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Old 07-19-2007   #33
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Re: Exhaust Opinions

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Why not one-up the supra and diesel truck guys?! Go 6" or go home.
Well I guess I could add another tunnel down the center of the car.
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Old 07-19-2007   #34
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Re: Exhaust Opinions

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Originally Posted by 1ViciousGSX View Post
Well I guess I could add another tunnel down the center of the car.
Smoke stacks!
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Old 07-19-2007   #35
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Re: Exhaust Opinions

Right Through The Power Hump!!!!!
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Old 07-23-2007   #36
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Re: Exhaust Opinions

OK, here's what's on the way.

Borla XR-1 race muffler 3.5 in/out
Dynomax Bullet 3.5 in/out resonators (2 of them)
3.5 inch S/S piping, bends, etc.
3.5 inch v-bands, etc, etc.

Should be fun.
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Old 07-23-2007   #37
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Re: Exhaust Opinions

Quote:
Originally Posted by 1ViciousGSX View Post
3.5 inch S/S piping, bends, etc.
3.5 inch v-bands, etc, etc.
Where'd you pick this stuff up from? What grade of SS are you going with?
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Old 07-24-2007   #38
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Re: Exhaust Opinions

I am sure it is 304SS, that is the main thing available. Looks like a nice setup although the 2nd resonator might be overkill. The Borla's sound damn nice, wish they were cheaper!
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Old 07-24-2007   #39
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Re: Exhaust Opinions

Everything is coming from Jegs. 16 gauge 304s/s piping. The resonators were pretty cheap, so I got two of them. Basically I'm going to build a duplicate of the Apex-i N1 system I have in a true free flowing 3.5 inch set-up.
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Old 07-30-2007   #40
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Re: Exhaust Opinions

Well the exhaust is done. 3.5 inch from the flex section back. System is almost completely straight line until it does a slight dog-leg under the rear end. There are almost no angles involved with most of the system, only slight tweaks that are way too small to even consider trying to cut and insert angled pipe. Glad I went with two resonators. I would not recommend using only one unless you want a really loud car. It's about the same volume as my old APex-i N1 system, but with a much deeper tone, almost has a Flowmaster quality to the tone at times. I'll try to get some pics posted this afternoon.
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Last edited by 1ViciousGSX; 07-30-2007 at 09:29 AM..
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