exhaust question

Discussion in 'Modifications & DIY how-to' started by Mad Mallard, Jun 28, 2005.

  1. Mad Mallard

    Mad Mallard the mad mallard

    what is the diameter of the up, down and exhaust pipes?
     
  2. FTZ

    FTZ ^.^

    I believe stock on the WRX is 2.5" or 2.25"
     
  3. WRX-WRC

    WRX-WRC Active Member

    2.25 for wrx
     
  4. Mad Mallard

    Mad Mallard the mad mallard

    how big are most up-down-back upgrades/mods?
     
  5. SonicBoom

    SonicBoom Active Member

    I believe most up pipes are the same diameter as stock(minus the cat), downpipes range from Turbo-xs's massive 4" pipe, to 3" or 2.5. Midpipe back are mostly 3" if you want to be really loud or 2.5" for performance gains/nice deep rumble without waking up the neighbors. I'm sure everything goes bigger by some company out there, this is just what I've seen....


    "POSER MOBILE SAYS YOUR OUT'TA PRE-PAID MINUTES YO!!!!"
     
  6. Mad Mallard

    Mad Mallard the mad mallard

    the random tech i'm getting is apparently a 3". I was worried since i didn't know any better that this might be too big and cause more low end torque loss?
     
  7. moose

    moose Infina Mooooooose!

    I don't think it should affect low end torque on a turbo car, somebody prove me wrong...
     
  8. Mad Mallard

    Mad Mallard the mad mallard

    so i'm gonna be pretty loud with a 3" full exhaust? or will still having cats quiet it down considerably?
     
  9. FTZ

    FTZ ^.^

    No, you will be loud
     
  10. Mad Mallard

    Mad Mallard the mad mallard

    darn.. i don't want to get a headache driving...

    this is my 90 minute a day beater after all...

    should i be rethinking this guys? I don't care how fast it is, it CANT become annoying to drive it..
     
  11. Genya

    Genya No Longer Up At Odd Hours

    Then I would recommend a "quiet" exhaust. Evo2, Sp2, Hush, and Bliz Touring are all very quiet.
     
  12. moose

    moose Infina Mooooooose!

    Not to threadjack, buy holy crap Jason, your sig vid is like a MEG. Killed my connection at work today.
     
  13. moose

    moose Infina Mooooooose!

    Also, Prodrive is not very loud driving around. Ask Alex. :naughty:
     
  14. SonicBoom

    SonicBoom Active Member

    I have a full Stromung setup, 3" down, 2.5 from midpipe back and its fairly quite. Louder than stock but not loud enough to alert the authorities. I'm really happy with this set-up. So, I'd say, if sound is a factor I'd back it off to 2.5....

    P.s...How are you going to have 3 cats with an aftermarket setup? 3 hi-flows?
     
  15. Mad Mallard

    Mad Mallard the mad mallard

    random technologies is where i'm getting a present for me delivered. this isn't really a matter of 'shopping around' guys... I'm sure my pop has some sort of favour he's calling in on them, or something..

    http://www.randomtechnology.com/subaru.html
     
  16. miloman

    miloman Retired Admin

    stromung has a nice deep tone... good sound but not too loud...

    y don't u get the blitx nur-spec and join the dark side :evil:
     
  17. Alex

    Alex Community Founder Staff Member

    Blake (AthensWRX) has the randomtech 3" exhaust...shoot him a PM and you can prob. get a ride.
     
  18. Weapon

    Weapon 90lbs of dynamite Supporting Member

    maybe its me but i like the loud sound of our cars..sounds good!! hell half the time i dont even have the radio on
     
  19. jt money

    jt money 350hp mmm mmm Good! Supporting Member

    thats how i drive most the time also. no radio. love the growl of our motors. be one with the car. lol
     
  20. Mad Mallard

    Mad Mallard the mad mallard


    hey milo I rode with you, & you're running dp and back without a cat, right? what diameters were yours?
     
  21. rolling_trip

    rolling_trip Active Member

    its just u:rofl:, sorry i missed ur car at the install day, freaking work, u should try coming out to north point thursday i want to see it


     
  22. FTZ

    FTZ ^.^

    Milo has one cat, not sure if it is highflow, or stock.
     
  23. miloman

    miloman Retired Admin

    i have the helix dp with one hi flow cat in it... up-pipe is catless...
    the catback is 3.1 inch
    i dont remember exact diameters of the dp but i believe its a 4 inch bell tapering down to a 3 :confused:
     
  24. moose

    moose Infina Mooooooose!

    Sounds like the same Helix DP I have.. it's 3" with a bellmouth.
     
  25. Mad Mallard

    Mad Mallard the mad mallard

    well heck, i'll end up with more cats than milo, and if its the same as his or quieter, it should be fine...
     
  26. miloman

    miloman Retired Admin

    if u are ok with the sound on mine, u can pretty much get any exhaust on the market... the helix+blitz combo is one of the loudest combinations available
     
  27. JJang12

    JJang12 Active Member

    i saw a big jump of sound from stock 3rd cat to stromung high flow cat. The sound is PERFECT right now. Don't wanna get any louder.

    my setup:
    catless up -> 3" catless divorced shorty dp -> 3" highflow cat -> stromung catback

    I consider my sound is quieter than milo's
     
    Last edited: Jun 29, 2005
  28. miloman

    miloman Retired Admin

    hahaha... i love how my car is used as a comparator :D
    wonder if mine will be louder with the new turbo :D
     

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