Intake & Exhaust Questions and info regarding various aftermatket exhaust systems for the G35 (Headers,Y-Pipes, and Cat-Back Systems)

custom exhaust

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Old 06-10-2008, 09:32 AM
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custom exhaust

getting a custom built exhaust tomorrow, any suggestions about the sizing?? its basically gonna be straight pipes, true dual and like 2.5" piping, does that sound good??
 
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Old 06-10-2008, 09:40 AM
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Homemade Exhaust....?

The 2.50 pipe is the size most commonly used with our cars but how it sounds
will depend on the muffler/mufflers you use. You don't want to have it sound
like a Ford truck so muffler selection w/b critical. Don't forget to use a
cross over that too will effect the final sound....G/L
 
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Old 06-10-2008, 10:02 AM
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Originally Posted by gary c
Don't forget to use a
cross over that too will effect the final sound....G/L
????????????
 
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Old 06-10-2008, 11:35 AM
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if its going to be true dual then i would go with 2.25 ID.
 
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Old 06-10-2008, 01:23 PM
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Any idea of what its costing you to have one built?
 
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Old 06-10-2008, 06:13 PM
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Originally Posted by CDN_G35
Any idea of what its costing you to have one built?
like at the most, about $250, a buddy of mine did his corvette for $180
 
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Old 06-10-2008, 06:15 PM
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Originally Posted by Klubbheads
if its going to be true dual then i would go with 2.25 ID.
really, whys that?
 
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Old 06-10-2008, 06:19 PM
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Originally Posted by MoeMoney1818
really, whys that?
The stock exhaust is 2.5" so if you split it you need to go smaller or you will lose back pressure and low end torque.
 
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Old 06-10-2008, 06:24 PM
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oh, good looking out, thanx!
 
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Old 06-10-2008, 06:42 PM
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Originally Posted by MoeMoney1818
like at the most, about $250, a buddy of mine did his corvette for $180
that is most likely what he paid to just strait pipe the car.
 
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Old 06-13-2008, 03:52 AM
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I would strongly suggest some sort of cross-over and not a true dual. It loses you power overall by not working efficiently. Just my .02 from various exhaust specialists I've talked to and know.

Duals are alright if you are running like 3 feet of piping on a racing engine that just spits it out before passing the rear axle. That or you just have immense power already. Our cars aren't that juiced stock so I would go with higher flow of an X-pipe.
 
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