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Thread: exhaust size for a smallport 4age

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    Default exhaust size for a smallport 4age

    best size?

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    Veteran LittleRedSpirit's Avatar
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    Default

    2 inch






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    and just run one muffler?
    im getting it done tomorrow with the shotgun finish

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    Veteran LittleRedSpirit's Avatar
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    Every single other person on here will say get 2.5 or 2.25.

    I think 2 inch is fine for a 1600 at any rpm.

    One muffler, one resonator just before diff and a cat just after the headers. Go over diff, it makes little difference until you work on the car, and decide under diff is difficult for no reason. Don't use a canon unless you like the sound of farts to be playing the entire time you are driving.

    Peace






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    Hair model Jacobxxx's Avatar
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    ^ everything this guy said. Except some people opt for a 2 1/4 and say it is the best size for 4age, if you do a search it's been covered a few times.

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    Stock with no upgrades, to mild upgrades (up to 140-150 hp) - 2" mandrel, 2.25" crush bent.

    Built motor, shooting for 150-200+ hp 2.25" or 60mm (2.375") mandrel, 2.5" crush.


    BEST exhaust I ever had for a stock 4age, Fujitsubo Legalis-R single tip which is a straight through muffler/resonator and mandrel bent 2". Also, it is $$$.

    Andrew

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    Moderator Sam-Q's Avatar
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    what engine mods and ecu?
    My website: SQ Engineering - 4AGE and 3SGE upgrade/replacement parts

    - SQ Engineering on facebook -

    Please e-mail to contact me instead of sending a private message on here.

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    I ran 2.5 with resonator and 2.5 muffler, on a stock smallport, was okay, didn't drone much maybe just a little loud. Anyway on my ae71 I got the exhaust made while I still had the 4ac in and went 2.25 with resonator and 2.25 muffler and it was perfect! Not a bit of drone, nice and quiet cruising around but had a bark when you opened it up. So then I put in a 4age smallport with quads with an adaptronic. Fucking LOUD!! Like droney cruising around 3000rpm. Too loud the second you give it any gas! Its so gay. So I went back to the exhuast guy and asked him to quiet it abit and ffs get rid of the drone. He swears blind that a cat will fix it. He's been after me from the word go to put in a cat but as happens with me I think hey he's the pro he must know what he's on about. NOPE droney as fuck, no quieter, its moved the power band down and doesn't like to rev at all!!! So I'm planning on getting rid of the cat entirely, and either getting a good quality 2.25 stainless muffler or cutting the muffler back to 2 inch!

    So anyway the point of all this is your engine setup massively changes the sound! a 2.5inch setup was way quieter than my current 2.25 setup, both running the same brands and construction methods, change the intake and the ecu and bam totally different sound!
    Launceston = Home of the surprise sodomist!!

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    Veteran lolwat's Avatar
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    2 1/4 with res and rear muffler, i currently only got rear muffler, sounds shit unless your into it (6 grand atleast plus), drones and shit, but fairly quiet at idle
    (Bigport TVIS, JDM ecu)
    Last edited by lolwat; 23rd August 2011 at 10:47 PM.

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    Moderator Sam-Q's Avatar
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    why don't you go back and hold him accountable? also what a total dickhead, the only time a cat changes things is because it's causing a restriction. Fit a dogleg 2.25 muffler instead of a straight through, that will fix it

    [edit] take the cat out take it to the guy and ask for a refund and then put another muffler in where it was, should make a drastic difference
    Last edited by Sam-Q; 23rd August 2011 at 10:53 PM.
    My website: SQ Engineering - 4AGE and 3SGE upgrade/replacement parts

    - SQ Engineering on facebook -

    Please e-mail to contact me instead of sending a private message on here.

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