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Old Feb 14, 2011 | 07:47 PM
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Default Ideas on Custom single exhaust

After searching, i couldn't find the answers i'm looking for.
Since i know a fab guy who does amazing job customizing cages and exhausts, i might go with custom single exhaust. He custom made a harness bar for me and IMO it's definately better than other bars out there.
So the reason being for wanting a single exhaust is because of weight reduction, better flow and loud azz sound. (When to couple of Autox events and they got some ear bust exhausts).
I'm looking for 4.5 ~ 5 inch exhaust tip, and straight pipe after stock y-pipe, before exhaust tip.
Would megaphone type exhaust tip look good with bumper tuck? (im def tucking the bumper with single exhaust)
Would i need to customize the stock y-pipe also? (i got hr y-pipe. my car is 05)
What should the piping size be? what material?
How much would i expect to pay with or without labor?

thankz guyz

Last edited by JDMStanced; Feb 19, 2011 at 05:58 PM.
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Old Feb 14, 2011 | 07:51 PM
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Originally Posted by JDMStanced
After searching, i couldn't find the answers i'm looking for.
Since i know a fab guy who does amazing job customizing cages and exhausts, i might go with custom single exhaust. He custom made a harness bar for me and IMO it's definately better than other bars out there.
So the reason being for wanting a single exhaust is because of weight reduction, better flow and loud azz sound. (When to couple of Autox events and they got some ear bust exhausts).
I'm looking for 4.5 ~ 5 inch exhaust tip, and straight pipe after stock y-pipe, before exhaust tip.
Would megaphone type exhaust tip look good with bumper tuck? (im def tucking the bumper with single exhaust)
Would i need to customize the stock y-pipe also? (i got hr y-pipe. my car is 05)
What should the piping size be? what material?
How much would i expect to pay with or without labor?


PS. is the y-pipe the one that has the catalytic, or is it be the right after headers? id like to leave the cat alone.

thankz guyz

Uhh...why don't you ask the custom fab guy those questions. You can run a 6" exhaust straight from the exhaust manifolds back and Y-it after the rear pumpkin with a 10" tip. Hella loud.
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Old Feb 14, 2011 | 08:08 PM
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make sure the events you run in, dont have sound limitations.
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Old Feb 14, 2011 | 08:09 PM
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like i stated, i prefer keeping the cat, and 4.5~5 inch for exhaust tip. Minimizing the cost.
I know i'll ask him one day but i'd like to hear opinions from 350z guys.
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Old Feb 14, 2011 | 08:11 PM
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Originally Posted by skakemokid
make sure the events you run in, dont have sound limitations.
They do have limitation. "A MAXIMUM noise level of 93.0 DBA at 50 feet for all participants"
dunno how loud that is
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Old Feb 14, 2011 | 08:14 PM
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I run a single, with stock y pipe, tp's, and the greddy tic with the resonator taken out.. and its stupid loud.. way more that the 93. dba. Just do 3 inch mid with resonator and a muffler. Trust it'll be loud
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Old Feb 14, 2011 | 08:16 PM
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Originally Posted by JDMStanced
They do have limitation. "A MAXIMUM noise level of 93.0 DBA at 50 feet for all participants"
dunno how loud that is
That's not loud at all. That is barely over the max street decibels in most states for a motor vehicle.

CA is 92DBA...there are a **** load of exhaust ticket posts in the CA forums.
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Old Feb 14, 2011 | 08:19 PM
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I have seem custom exhaust before. Some turn out great. Some look like shiit. Only drawback of a custom exhaust is that it is unproven.
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Old Feb 14, 2011 | 08:23 PM
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Originally Posted by TheFarmer
That's not loud at all. That is barely over the max street decibels in most states for a motor vehicle.

CA is 92DBA...there are a **** load of exhaust ticket posts in the CA forums.
I wonder how some cars have crazy loud exhausts..mostly the ones have open wheels or old school cars with lots of mods.
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Old Feb 14, 2011 | 08:25 PM
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Originally Posted by skakemokid
I run a single, with stock y pipe, tp's, and the greddy tic with the resonator taken out.. and its stupid loud.. way more that the 93. dba. Just do 3 inch mid with resonator and a muffler. Trust it'll be loud
muffler as in stock muffler? end exhaust
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Old Feb 14, 2011 | 08:38 PM
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no man. like any muffler you want, just as long as its 3 inch inlet
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Old Feb 14, 2011 | 09:48 PM
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i'll k33p 3"mid pipe with any muffler in mind.
Any other suggestions?
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Old Feb 14, 2011 | 10:12 PM
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........
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Old Feb 15, 2011 | 07:45 PM
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I have a hks canister with a 75 mm inlet, 3 inch piping, stillen ypipe, and turbo xs test pipes. It is very loud, especially on a cold start. I'm sure it could wake the dead. As far as daily driving goes, it's not too bad, unless you get on it, then it can be pretty raspy.
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Old Feb 15, 2011 | 08:39 PM
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oh.. add a resonator on it to make it less raspy... mine is kinda raspy
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Old Feb 15, 2011 | 08:53 PM
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Originally Posted by My08smbZ
I have a hks canister with a 75 mm inlet, 3 inch piping, stillen ypipe, and turbo xs test pipes. It is very loud, especially on a cold start. I'm sure it could wake the dead. As far as daily driving goes, it's not too bad, unless you get on it, then it can be pretty raspy.
how much did that set up cost you? HKS canister, 3" piping and/or with stillen y-pipe?
If i have to spend more than $300 on custom set up, i rather save little more and go with used agency power.

Originally Posted by skakemokid
oh.. add a resonator on it to make it less raspy... mine is kinda raspy
yeh u told me to add the resonator on the previous post. Using the stock resonator, right?
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Old Feb 15, 2011 | 09:27 PM
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no add a 3 inch resonator so you have no bottlenecks in your system.
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Old Feb 15, 2011 | 10:11 PM
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Why dont you just buy a used one?

I found my custom HKS single for $250 shipped on here.
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Old Feb 15, 2011 | 11:25 PM
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just order a ap,jic,megan ap knock off, hks single, or one of the many others out there. don't fab junk up unless you are doing it for fun like i did with my straight 3" with on muffler.
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Old Feb 15, 2011 | 11:36 PM
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no comment other than this comment of me stating no comment
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