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exhaust question

Discussion in '4 Cylinder' started by tacosuprem, Jun 11, 2010.

  1. Jun 11, 2010 at 5:44 AM
    #1
    tacosuprem

    tacosuprem [OP] Well-Known Member

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    has anyone hollowed out there catalytic converter? do you see any hp gain? or have and sound clips what it sounds like?
     
  2. Jun 11, 2010 at 8:50 AM
    #2
    tacosuprem

    tacosuprem [OP] Well-Known Member

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    OK or a high flow cat?
     
  3. Jun 11, 2010 at 12:24 PM
    #3
    Who Dat Popcorn

    Who Dat Popcorn Dafuq

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    I think the stock cats that we have are already high flow.
     
  4. Jun 11, 2010 at 1:34 PM
    #4
    Barnone

    Barnone Guest

    I doubt the gain would be worth the cost. Super charger or turbo charger is about the only mod that will gain you a big change in a 4 banger.
     
  5. Jun 12, 2010 at 1:49 PM
    #5
    toycar18

    toycar18 Well-Known Member

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    OME Suspension, BFG 33x10.50 AT, Light Racing Upper Control Arms, Rear ARB Air Locker, LCE Header, Dynomax Super Turbo Muffler, K&N Intake
    I would get a header before I did that.

    I have a LCE one and it added HP and made it sound good.
     
  6. Jun 13, 2010 at 11:18 AM
    #6
    tacosuprem

    tacosuprem [OP] Well-Known Member

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    been looking at a header and hollowing out the cat. i think i will get some decent HP.
     
  7. Jun 13, 2010 at 12:08 PM
    #7
    toycar18

    toycar18 Well-Known Member

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    OME Suspension, BFG 33x10.50 AT, Light Racing Upper Control Arms, Rear ARB Air Locker, LCE Header, Dynomax Super Turbo Muffler, K&N Intake
    I did a new K&N intake and header with high flow muffler and it was significant HP gains. Probably around 15-25 HP.
     
  8. Jun 13, 2010 at 12:26 PM
    #8
    Barnone

    Barnone Guest

    How did you measure the gain?:confused:
     
  9. Jun 13, 2010 at 12:34 PM
    #9
    toycar18

    toycar18 Well-Known Member

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    OME Suspension, BFG 33x10.50 AT, Light Racing Upper Control Arms, Rear ARB Air Locker, LCE Header, Dynomax Super Turbo Muffler, K&N Intake
    The K&N is about 5 HP gain and the header with muffler at least 10 HP or more. So easily a 15 HP gain.

    It is very noticeable.

    I measured with me hammering down. It takes off after all of that....

    I could blow my brothers 4 Runner that had a V6 0-60 after all the changes.

    Before that he would beat me easily.

    The 2.7L is about 150 HP and the 3.4 4Runner is about 183 HP.
     
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