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

Exhaust Cut-Outs ?

Discussion in 'Performance and Tuning' started by rcrick263, Feb 10, 2009.

  1. rcrick263

    rcrick263 [OP] Well-Known Member

    Joined:
    Dec 17, 2008
    Member:
    #11688
    Messages:
    65
    Gender:
    Male
    Utah
    Vehicle:
    06 TRD Off Road 6spd
    None
    Has anyone installed electronic exhaust cutouts on the 4.0 V6? Any power increase at all? Any better fuel economy? I'm sure they work great for older V8 vehicles and stuff, but does anyone know if they would do any good on a Tacoma besides make noise?
     
  2. chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Staff Member

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    103,458
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, lots of buttons, and yellow flashing lights on the dash.
    Mostly just noise makers.
     
  3. dually

    dually Low and slow

    Joined:
    Jul 29, 2008
    Member:
    #8205
    Messages:
    3,134
    Gender:
    Male
    Interstate underpass
    Vehicle:
    05 Indigo 4wd Longbed
    Not as many as the 98..
    Only good for boosted motors.... vrrrrroooom pshhhhhhhhhhh
     
  4. chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Staff Member

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    103,458
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, lots of buttons, and yellow flashing lights on the dash.
    Depending on the amount of boost. I have seen a few boosted motors get less h.p. with open pipes. Over 10 psi, though, and yes...they help. :)
     
  5. dually

    dually Low and slow

    Joined:
    Jul 29, 2008
    Member:
    #8205
    Messages:
    3,134
    Gender:
    Male
    Interstate underpass
    Vehicle:
    05 Indigo 4wd Longbed
    Not as many as the 98..
    Yeh, I just installed a E-cutout on a 94 3000gt VR4 twinturbo thats running about 14psi, and by the seat of the pants dyno, it made quite a difference.
     
  6. rcrick263

    rcrick263 [OP] Well-Known Member

    Joined:
    Dec 17, 2008
    Member:
    #11688
    Messages:
    65
    Gender:
    Male
    Utah
    Vehicle:
    06 TRD Off Road 6spd
    None
    Do you think they would sound good at all? I would probably install them after the cats and O2 sensors so it don't screw up computer readings but i wonder how much the cats would muffle? I noticed there are four of them!
     
  7. chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Staff Member

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    103,458
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, lots of buttons, and yellow flashing lights on the dash.
    Im sure it did. Be nice to see it on the rollers. But its hard to find a 4 wheel dyno.
     
  8. rcrick263

    rcrick263 [OP] Well-Known Member

    Joined:
    Dec 17, 2008
    Member:
    #11688
    Messages:
    65
    Gender:
    Male
    Utah
    Vehicle:
    06 TRD Off Road 6spd
    None
    I've heard that people have got better fuel economy with cutouts by changing back pressure by adjusting the cutout partially open or close. Does anyone know if this is true?

    I guess I'm just looking for an excuse to get some, Lol! I just think it would be cool to have some! Sometimes i want Loud exhaust sound and other times i want completely stock sound. But thats a lot of money just to do that! It would probably be cheaper for a whole exhaust system that will perform well too! Ill probably just do that.
    :confused:
    I don't know, but here is a video of how they work

    http://www.youtube.com/watch?v=P0tk5k7Gyp4
     
  9. 311offroad

    311offroad Stock Taco For Now

    Joined:
    Sep 11, 2008
    Member:
    #9161
    Messages:
    1,304
    Gender:
    Male
    Milledgeville, GA
    Vehicle:
    2005 TRD OffRoad SR5 4x4 Short Bed Debadged
    20% tint, Debadged, Pioneer AVIC-Z110BT, Infinity component door speakers, MagLite mod
    I had a cutout on my 99 camaro, sounded good and loud at low rpms, but when you opened it up it got to be a little much.
     
  10. rcrick263

    rcrick263 [OP] Well-Known Member

    Joined:
    Dec 17, 2008
    Member:
    #11688
    Messages:
    65
    Gender:
    Male
    Utah
    Vehicle:
    06 TRD Off Road 6spd
    None
    Did your camaro have a v8 or v6?
     
  11. ERdept

    ERdept Well-Known Member

    Joined:
    Oct 22, 2007
    Member:
    #3187
    Messages:
    996
    Gender:
    Male
  12. luk8272

    luk8272 Poodoo

    Joined:
    Feb 24, 2008
    Member:
    #4929
    Messages:
    5,843
    Gender:
    Male
    First Name:
    Lucas
    Kaplan, Louisiana
    Vehicle:
    07 Silver4dr. 4x4, V6 Shortbed
    5% Tint, Bug flector, vent Visors, Removed secondary air filter, Rear Spring TSB w/ Wheeler's Add A Leaf HD Pack, Icon 2.0 rear shocks, Toytec 3" lift up front with Total Chaos UCA's, Debadged, Billet Grille,TRD Offroad rims/17x9 Pro comp 6001 rims, Duratracs 265/75/16 or 285/70/17, Fog light anytime mod, Tailgate hose clamp mod, Pro-dry AFE filter. Extended Differential Breather, ABS on/off, 6000k HID heads/fogs, ScanguageII, Devil horns, Devil horns on third brake light, Mounted 60" Highlift, Mounted Tool Box, Wet Okole Front Seat Covers, TW sticker, Midland Handheld CB,Painted engine cover, Revenge Fab Sliders, ARE Topper, Weather tech Floorliners.
    I personally don't think cutouts are useful in these trucks.
     
  13. chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Staff Member

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    103,458
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, lots of buttons, and yellow flashing lights on the dash.
  14. type o negative

    type o negative Well-Known Member

    Joined:
    Jan 26, 2009
    Member:
    #12988
    Messages:
    104
    Gender:
    Male
    UT
    Vehicle:
    09 Double Cab TRD Sport - White
    I installed cut offs in my 06 Mustang GT. Sounded AMAZING! oull up to a stop light and some ricer wants to race, open those bad boys up and its like a rottweiler barking at a chiuaua BUT. I lost so much bottom end! Unless you have a lot of work done I think the motor relies on the back pressure for the a lot of the torque, think putting your thumb over part of the hose to make a higher power stream.
     
  15. chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Staff Member

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    103,458
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, lots of buttons, and yellow flashing lights on the dash.
    Actually, Scavenging of the exhaust is much more important than back pressure.
     
  16. type o negative

    type o negative Well-Known Member

    Joined:
    Jan 26, 2009
    Member:
    #12988
    Messages:
    104
    Gender:
    Male
    UT
    Vehicle:
    09 Double Cab TRD Sport - White
    Which also makes sense. I just figured that was the only thing I could think of to why I would have less bottom end. Top end was way better, i figured it was becuase once im at the top end there is enough flowing that it wouldnt need back pressure. Keep in mind, I have no idea how the physics anything auto work ;)
     
  17. chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Staff Member

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    103,458
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, lots of buttons, and yellow flashing lights on the dash.
    Read the stuff I worte. I posted a link to how it all works in post #13 above.:)
     
  18. type o negative

    type o negative Well-Known Member

    Joined:
    Jan 26, 2009
    Member:
    #12988
    Messages:
    104
    Gender:
    Male
    UT
    Vehicle:
    09 Double Cab TRD Sport - White

    That was a great write up! Helps me understand a lot better, explains perfectly why cut off are NOT a great idea if your looking for performance.
     
  19. chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Staff Member

    Joined:
    May 8, 2008
    Member:
    #6497
    Messages:
    103,458
    Gender:
    Male
    First Name:
    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, lots of buttons, and yellow flashing lights on the dash.
    Glad you liked it, and it cleared things up for ya. ;)
     
  20. rcrick263

    rcrick263 [OP] Well-Known Member

    Joined:
    Dec 17, 2008
    Member:
    #11688
    Messages:
    65
    Gender:
    Male
    Utah
    Vehicle:
    06 TRD Off Road 6spd
    None
    Nice right up! I learned a lot from it. You have answered all my questions. Thank you very much! Definitely not getting cutouts. Lol!

    (Off Subject)
    Sorry but what are the green dot things below everyone's name? Is it reputation? How does it work? Someone gave me "rep points", how do i give them points?

    Oh and thanks for moving my thread to the right category! Whoever might have done that.
     
To Top