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  • Cat. Conv. Sizes NEED INFO

    I have a 95 3.4 firebird, replacing the stock cat with a dynomax, what is the size? in/outlet and length?

    Thanks
    dave
    03 Subaru WRB WRX<br />Clear parking lights<br />Autometer Phantom Boost guage

  • #2
    Also, 2way or 3way?

    Look here for what i have to choose from.
    http://www.jegs.com/cgi-bin/ncommerc...br=76&lastcat=
    03 Subaru WRB WRX<br />Clear parking lights<br />Autometer Phantom Boost guage

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    • #3
      Do you have a Catback on?


      ~Taylor
      You Samoans are all the same...you have no faith in the essential decency of the white mans\' culture.

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      • #4
        yeah, dual outlet dynomax super turbo.
        03 Subaru WRB WRX<br />Clear parking lights<br />Autometer Phantom Boost guage

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        • #5
          Your stock is most likely 3" in 2.25" out like the rest of us. I went with a Catco 3" in and out, and no SES light so far.
          <b>99 Camaro Z28 A4</b><br />R.I.P. 00 Firebird 3.8<br />14.89 @ 90, 2.03 60\'

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          • #6
            Ill try to keep it the stock sizes.. dont wanna have to buy adapters and stuff..
            dave
            03 Subaru WRB WRX<br />Clear parking lights<br />Autometer Phantom Boost guage

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            • #7
              The 3.4 is 2.5 in to whatever your catback is out. Check my sig, my setup worked really well and I have no SES light but I had to fabricate adapters myself because I was installing it myself. A shop wanted $250 to do the whole job and wouldnt make me adapters so I had to weld it all myself. I think my catco is a 2 way w/ air tube but the tube came capped so I just left it how it was. hope this helps.

              Also, goto summit and buy a catco for $60 shipped. IMO all high flow cats are the same. Go with Catco.

              [ March 24, 2002: Message edited by: Original 4th Gen V6 ]</p>
              1993 3.4 <br />Borla rear section<br />3 inch Catco High Flow Cat<br />2.75 inch I pipe (Picked one up from an LT-1 guy for a whole $10)<br />K&N Fipk <br />180° T-stat<br />Jet Stage II<br />10 Spoke Z28 Wheels<br />NGK\'s, Taylor Spiros<br />Mobil 1 synthetic<p>Email Viper2@chesnet.net for 4th gen replacement parts.

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              • #8
                2.5 in.. how long.. and if i never changed the pipe behind the cat. what would the outlet be?
                dave
                03 Subaru WRB WRX<br />Clear parking lights<br />Autometer Phantom Boost guage

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                • #9
                  what are the dimensions? how long and stuff?

                  dave
                  03 Subaru WRB WRX<br />Clear parking lights<br />Autometer Phantom Boost guage

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