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Catalytic Converters

Discussion in 'Engine Building' started by 97SIRTN, Jun 20, 2005.

Which one for daily driver w/no emission testing

  1. Stock Cat

    100.0%
  2. High Flow Cat

    0 vote(s)
    0.0%
  3. Test P

    0 vote(s)
    0.0%
  1. 97SIRTN

    97SIRTN Member

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    Turbo planned for later this year.
    For now I/H 2.5 catback Exh
    Which of the three would be best for my daily driver. I don't have to worry about emissions testing, and want to get all the power out of it I can.
    I do drive with my windows down ALL the time<-No AC.
    Smell factor.
     
  2. 97CTR

    97CTR Senior Member

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    high flow cat, test pipes sound like ass IMO....... and oh yes the environment :lol:
     
  3. xj0hnx

    xj0hnx I wanna be sedated VIP

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    I had a high flow, the element cracked inside it, and I had a horrible rattling, busted it out and welded in a test pipe, dyno proved it improved flow, mostly feels better up top, so if you are boosting, and hate your grandchildren and mine, test pipe, IMO, get a highflow and help yourself, because if you drive with the windows down, you will be smelling fuel/exhaust all day.
     
  4. E_SolSi

    E_SolSi Member of the 20 nut club Moderator VIP

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    yeah the smell is pretty fucking nasty :puke:
     
  5. dohcvtec_accord

    dohcvtec_accord WRX Sellout

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    +1 for a high-flow. I hate the smell/noise of a catless exhaust.
     
  6. pissedoffsol

    pissedoffsol RETIRED

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    car sound high flow. they make 'em in 3" for you and everything.

    its like a 2 whp loss at 300 whp. so not worth the smell...
     
  7. xj0hnx

    xj0hnx I wanna be sedated VIP

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    Just becareful when you order it, and make SURE that it is for your application. I got one for a 96+ and it was about 3/4 of an inch to long, I had to cut the flange and reweld, added half an hour to my bay time.
     
  8. phyregod

    phyregod !!YTINASNI

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    Get a high flow. Have one on mine (3" Car-Sound), works like a champ.. doesnt stink like fuel, better for the enviorment... its just all good.
     
  9. cheese9988

    cheese9988 Senior Member VIP

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    Does a hollowed out cat do anything for you, ie knocking all the honeycomb stuff out of it?
     
  10. VTECPOWER

    VTECPOWER Senior Member

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    The exhaust is more free flowing and goes out of the exhaust system more quickly.
     
  11. dohcvtec_accord

    dohcvtec_accord WRX Sellout

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    It also nets you about 1/10th of a horsepower over a high-flow cat, and kills baby penguins to boot.

    Not worth it. Get a high-flow.
     
  12. E_SolSi

    E_SolSi Member of the 20 nut club Moderator VIP

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    :(
     
  13. wanderinman

    wanderinman Senior Member

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    I second the :(

    Save the penguins, run a cat
     
  14. sohcslammer

    sohcslammer Senior Member

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    Bah, breathing is over-rated.... :D
     
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