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Piping Size for Custom Exhaust

Discussion in 'Performance and Tuning' started by SilverTacoEater, May 19, 2011.

  1. May 19, 2011 at 5:33 PM
    #1
    SilverTacoEater

    SilverTacoEater [OP] Well-Known Member

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    Chris
    Pasadena, MD
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    11 Tacoma SR5 4X4
    Stock
    Hey guys. This is my first post. I traded in my '06 Civic Si and bought an '11 Toyota Tacoma SR5 V6 4X4 this recently past monday. I have to say I love it so far. :D
    Now I'm already looking to build my own custom exhaust. I was wondering what size piping is best for the 4.0 to exhale through without hurting my low end torque. I want a nice sound but more importantly some better performance. I plan on constructing my exhaust from the cat on back using mandrel bends and plan on doing 1 in and 1 out. Keep in mind I do plan on adding some other mods in the future (intake, headers, and maybe a chip or piggy back) so i want the exhaust to compliment my future modifications. Any help would be appreciated.
     
  2. May 19, 2011 at 5:37 PM
    #2
    johnw

    johnw Well-Known Member

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    john
    orlando florida
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    06 prerunner v-6 4.0L 4 door
    well you asked for specs..... 06 trd sport speedway blue V-6 4.0 camburg lift spindles extended travel icons total chaos lowers allpro 4" leaf pack 17" xd hoss rims 305/65/17 mickey thompson baja atz Allpro hybrid bumper with 3 kragen HID lights color matched headlights grill craft grill AFE stage 3 CAI wicked flow muffler under cover bed cap inside i have..... wet okole real tree camo seat cover blue oznium dome light stealth sub box with 2 10" kicker comp subs kicker 400 watt amp weathertech floor mats
    Stock us 2.25 inner diameter and some kits go up to 3" so I wills say 2.5" all the way through
     
  3. May 19, 2011 at 5:43 PM
    #3
    whippersnapper02

    whippersnapper02 Well-Known Member

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    Christian
    Yorba Linda, CA
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    10 MGM TRD OR 4wd Auto DCSB
    Banks Monster Exhaust, Pop n Lock tailgate lock, Hook-Ups tie down brackets, USA Spec Ipod adaptor, WO seat covers, color matched grill with Grillcraft insert, Tuffy locking bed box
    2.5 is good. My Banks kit uses 3" but I personally think it is too big.
     
  4. May 19, 2011 at 5:52 PM
    #4
    SilverTacoEater

    SilverTacoEater [OP] Well-Known Member

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    11 Tacoma SR5 4X4
    Stock
    Thanks guys. thats what i'll do then. How are the shorty headers for these trucks? Do you see or feel any real gains with these or are they worthless?
     
  5. May 19, 2011 at 6:22 PM
    #5
    Yamaha Dave

    Yamaha Dave Well-Known Member

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    I did 2.5 on my custom setup as well..
     
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