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> Exhaust...2.25 or 2.5in and over or under axle???
post Jan 9, 2007 - 9:44 PM
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Davesceli

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Which is better for a stock 5sfe, 2.25 or 2.5in pipe? I've searched around and its a pretty even split on opinions between them. I've decided on the HKS Carbon TI muffler with the 60mm (just over 2.25 in) inlet, i know its expensive for a stock motor but it looks damn good and sounds sweet, my mind is made up. Carbon fiber is just so sweet!!!! biggrin.gif

Now i just gotta decide what size piping, its gonna be catback, and whether or not to go under axle or over. What are the pros and cons of each??? If i go "under axle" will there be any clearance issues since my car is lowered???

i know this question comes up a few times, but im looking for a definative answer...i've searched alot and i still can't come up with a good answer.

 
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post Jan 11, 2007 - 9:57 AM
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playr158



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QUOTE(Punisher @ Jan 11, 2007 - 1:02 AM) [snapback]516921[/snapback]

ideal would probably be 2" to be honest.. and go over or under the axle you won't notice a difference..

Although.. Our resident Engineer Dan seems to think differently smile.gif


you won't notice it on an ass dyno no. but there is an actual difference...length wise its shorter, and flow its smoother, why? because less bends = faster and less restricted flow...

Posts in this topic
- Davesceli   Exhaust...2.25 or 2.5in and over or under axle???   Jan 9, 2007 - 9:44 PM
- - Punisher   QUOTE(Davesceli @ Jan 9, 2007 - 9:44...   Jan 9, 2007 - 10:33 PM
- - 95CelicaST   Personally I would run under-axle just because it ...   Jan 10, 2007 - 2:29 PM
- - playr158   under axel = shorter, smoother and thus resulting ...   Jan 10, 2007 - 3:21 PM
- - Davesceli   There shouldn't be too much performance loss t...   Jan 10, 2007 - 10:46 PM
- - Punisher   ideal would probably be 2" to be honest.. and...   Jan 11, 2007 - 1:02 AM
- - hashmaster52   doesnt over the axle creat some kind of back press...   Jan 11, 2007 - 1:17 AM
- - playr158   QUOTE(Punisher @ Jan 11, 2007 - 1:02...   Jan 11, 2007 - 9:57 AM
|- - Punisher   QUOTE(playr158 @ Jan 11, 2007 - 9:57...   Jan 11, 2007 - 10:04 PM
- - playr158   i mean we could always let him to take your advice...   Jan 12, 2007 - 8:20 AM
|- - Punisher   QUOTE(playr158 @ Jan 12, 2007 - 8:20...   Jan 13, 2007 - 5:18 AM
- - Davesceli   I think im settled on 2.25 and over the axle, IMO ...   Jan 12, 2007 - 7:49 PM
- - Galcobar   Backpressure is bad. No ifs, ands or buts, or cond...   Jan 14, 2007 - 6:54 AM
|- - Punisher   QUOTE(Galcobar @ Jan 14, 2007 - 6:54...   Jan 14, 2007 - 1:00 PM
- - 95CelicaRacer   If you plan on keeping the 5sfe stock, I would not...   Jan 22, 2007 - 6:26 PM
- - 95CelicaST   QUOTEyou may gain 2-4 Hp. Yeah.. on hopes and dre...   Jan 22, 2007 - 9:36 PM
- - Bigmeanbulldog55   I'll just talk from my experience. I got 2.25...   Jan 22, 2007 - 9:50 PM
- - Negative   QUOTE(Bigmeanbulldog55 @ Jan 23, 2007 - ...   Jan 23, 2007 - 11:49 AM


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