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  1. #1
    Newcomer Array
    Join Date
    Aug 2008
    Car:
    Honda civic ek4

    2"1/4 exhaust question

    Noobie question just want to see some
    views. Own an ek4 vtir b16a thinking bout turboing the car for more power. Currently have a 2"1/4 inch catback system exhaust, is it too small and restricted and I need to upgrade it? Or cirtent setup would work fine?

    Thanks guys.

  2. #2
    Member Array
    Join Date
    Nov 2004
    Location
    Syd
    Car:
    .
    2.5" or 3" would be good for turbo :>

  3. #3
    Newcomer Array
    Join Date
    Aug 2008
    Car:
    Honda civic ek4
    Ah I see, guess there's no such thing as a quiet turbo car ay cop magnet

  4. #4
    Ozhonda Supporter Array
    Join Date
    Jul 2004
    Location
    Brisbane
    Car:
    MV Agusta F4
    Depends on your setup. 2.5 will be fine for a low boost stock internal setup.

    Also, turbo hondas are not loud. Turbo keeps the exhaust quite. Invest in a good muffler and resonator if needed.
    Deano.

  5. #5
    Member Array
    Join Date
    Nov 2005
    Location
    Adelaide
    Car:
    XR6 Turbo
    Bigger exhaust will make the turbo spool quicker, that being said Im only running a 2.5" exhaust on my setup....
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  6. #6
    Member Array
    Join Date
    Jul 2007
    Location
    Brisbane
    Car:
    4 banger
    a 2.5inch exhaust on a turbosetup would most likely be more quiet then ur 2.1/4inch NA exhaust.
    ohh herrow im jdm

  7. #7
    Member Array
    Join Date
    Oct 2004
    Location
    Sydney - Cabramatta/Liver
    Car:
    Jazz EVO IX
    i ran a 2 1/4 setup on my first turbo, was fine and i made 160kwatw.

    I'm only running 2 1/2 atm now and only making 163kw, so not much difference in the exhaust side.

    on a b16, its still a very small motor if your on a budget stay with the 2 1/4 first and see how you do.
    Evo IX - THE FINAL EVOLUTION

  8. #8
    Newcomer Array
    Join Date
    Aug 2008
    Car:
    Honda civic ek4
    Kool thanks for the advice guys

  9. #9
    Member Array
    Join Date
    Aug 2008
    Location
    Brisbane
    Car:
    EF8
    I'm running 8psi through stock internals and running a 2.25 cat back, made 163kw atw. No need to upgrade your exhaust just yet, sure a bigger one will flow better, but it's not a pre-requisite

  10. #10
    Newcomer Array
    Join Date
    Aug 2008
    Car:
    Honda civic ek4
    Kool man turbo makes a huge leap in Kw how about Torque? Boost much?

  11. #11
    Member Array
    Join Date
    Oct 2004
    Location
    Sydney - Cabramatta/Liver
    Car:
    Jazz EVO IX
    torque is even more so, why do you think boosted cars have traction problems?
    Evo IX - THE FINAL EVOLUTION

  12. #12
    Member Array
    Join Date
    Nov 2004
    Location
    Manly Yo
    Car:
    ED/EG5/EP3/JAZZ
    So anyone know how much PSI is safe with 2.5"?

    I'm thinking of going a low comp HG
    161.4KW ATW Tuned By TODA
    EG5 JDM B16A SiR-II TURBO

    13.28@106.6mph 2.117 60ft On RE001

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