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Exhaust and header questions

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    #1

    Exhaust and header questions

    I'm running a rs*r header with down pipe to a stock collector that was welded on. If i'm not mistaken the stock h22 collector is 2.25"? Then I have a stock cat which goes into a apexi ws2.

    I was thinking of just running a ebay text pipe deal with 2.25 in and 2.25 out so everything would be matched. Would that be my best bet for maximum preformance? Would there be any benefit to increase the size of the collector even though it be dumping into a 2.25" diameter exhaust? Also the down pipe has a few dings in it would that have any effect on performance?
    Originally posted by deevergote
    ..It's not cheap to build a fast CB7, especially NA. However, if you're willing to put the money into the car, it's well worth it in the end. There ARE faster cars out there, but some people, like me, want THIS particular car to be fast!...
    Sold to:tanNn2koo,9tAkord,ThrakBarts,nahmo,andrizzle,or anger
    Bought from:93a-lude, bruno8747, soysauce

    1993 H22A cb7 <3 miss you
    04 WRX stg 2 sedan
    Current - 02 WRX stg 2 wagon
    Tags: None
    #2
    Getting a test pipe would increase power and torque, but I wouldn't get an Ebay one. I'm not quite sure that the size of the collector is though.
    Raceline USA

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      #3
      h22 usdm collector = 2.25
      h22 jdm collector = 2.50


      if ur running the h22, try to go with at least a 2.5 all the way!



      My Ride

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        #4
        Originally posted by JDMxDB8
        Getting a test pipe would increase power and torque, but I wouldn't get an Ebay one. I'm not quite sure that the size of the collector is though.

        Whats the difference between ebay and if I got a pipe welded together? The ebay ones look like small resonators which might mean their would be less raspyness then just a pipe.

        I believe im running the jdm down pipe, not sure though. Found out today that there wouldnt really be a point in increasing the size of the collector if your exhaust is 2.25 anyway.
        Originally posted by deevergote
        ..It's not cheap to build a fast CB7, especially NA. However, if you're willing to put the money into the car, it's well worth it in the end. There ARE faster cars out there, but some people, like me, want THIS particular car to be fast!...
        Sold to:tanNn2koo,9tAkord,ThrakBarts,nahmo,andrizzle,or anger
        Bought from:93a-lude, bruno8747, soysauce

        1993 H22A cb7 <3 miss you
        04 WRX stg 2 sedan
        Current - 02 WRX stg 2 wagon

        Comment

          #5
          I have a 2.5" test pipe/resonator off of ebay. As of now I have the stock header, then the test pipe, into a Greddy Evo2 catback. I thought I was just buying some junk ebay brand of test pipe, and it turned out to be Skunk 2 (which was weird, because they didn't advertise any brand name). If you have an h22, you might as well buy the 2.5" test pipe for now, so you don't have to later, when you get a 2.5" exhaust (you really should if you have an h22).
          91 lx h22a

          Member's Ride Thread
          bought from: xkjnboix, new_beginnings

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