1. Welcome to Tacoma World!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tacoma discussion topics
    • Communicate privately with other Tacoma owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

opinions on pulling the cats on a 2.7

Discussion in '2nd Gen. Tacomas (2005-2015)' started by vtragweed, Oct 5, 2008.

  1. Oct 5, 2008 at 3:16 PM
    #1
    vtragweed

    vtragweed [OP] Beef Slut

    Joined:
    Aug 10, 2008
    Member:
    #8454
    Messages:
    1,621
    Gender:
    Male
    First Name:
    Willie
    VA
    Vehicle:
    08 2.7 SR5 Debadged
    afe pro-dry s filter, LCE headers, painted black steelies,color matched grill surround, URD short shifter, UWS black tool box
    what do yall think about pullin the cats on a 2.7 im putting a dynomax muffler and i wanna know if this will help
     
  2. Oct 5, 2008 at 3:18 PM
    #2
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    106,192
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    Help with power? Not really.
     
  3. Oct 5, 2008 at 3:22 PM
    #3
    vtragweed

    vtragweed [OP] Beef Slut

    Joined:
    Aug 10, 2008
    Member:
    #8454
    Messages:
    1,621
    Gender:
    Male
    First Name:
    Willie
    VA
    Vehicle:
    08 2.7 SR5 Debadged
    afe pro-dry s filter, LCE headers, painted black steelies,color matched grill surround, URD short shifter, UWS black tool box
    you really think it wont help much, are they high flow cats
     
  4. Oct 5, 2008 at 3:24 PM
    #4
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    106,192
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    Yes, they are "high flow".
    A muffler swap is only going to give you a few h.p. as it is. Deleting the cats would only give you maybe 2 more. And it could screw with the scavenging of the rest of the exhaust system, causing you to possibly loose h.p.
     
  5. Oct 5, 2008 at 3:26 PM
    #5
    vtragweed

    vtragweed [OP] Beef Slut

    Joined:
    Aug 10, 2008
    Member:
    #8454
    Messages:
    1,621
    Gender:
    Male
    First Name:
    Willie
    VA
    Vehicle:
    08 2.7 SR5 Debadged
    afe pro-dry s filter, LCE headers, painted black steelies,color matched grill surround, URD short shifter, UWS black tool box
    good deal thanks for the help
     
  6. Oct 5, 2008 at 3:27 PM
    #6
    vtragweed

    vtragweed [OP] Beef Slut

    Joined:
    Aug 10, 2008
    Member:
    #8454
    Messages:
    1,621
    Gender:
    Male
    First Name:
    Willie
    VA
    Vehicle:
    08 2.7 SR5 Debadged
    afe pro-dry s filter, LCE headers, painted black steelies,color matched grill surround, URD short shifter, UWS black tool box
    you really think it wont help much, are they high flow cats
     
  7. Oct 5, 2008 at 4:12 PM
    #7
    red06toy

    red06toy Well-Known Member

    Joined:
    Aug 28, 2008
    Member:
    #8840
    Messages:
    352
    Gender:
    Male
    Worcester MA
    Vehicle:
    Impulse red OR, 2.5 lift
    2.5 toytec, bilstein 5100 black grille, black lights, partially shaved decals remaning ones black, , trd fj wheels, sirius, Ipod interface, pre-filter delete
    these exhaust systems flow really well. If you take away too much backpressure youll loose power. the 4 cyls just dont make as much exhaust as a v-8, which will benefit from a low restricton system.
     
  8. Oct 5, 2008 at 5:34 PM
    #8
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    106,192
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    "Back pressure" isnt important. "Scavenging" is. :)
     
To Top