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Exhaust mods 4.0 v 6 to improve power, gas mileage?

Discussion in 'Performance' started by my runner, Feb 20, 2018.

  1. Feb 20, 2018 at 4:02 AM
    #1
    my runner

    my runner [OP] New Member

    Joined:
    Feb 20, 2018
    Member:
    #5520
    Messages:
    11
    Gender:
    Male
    First Name:
    dave
    Vehicle:
    2018 4runner 2018 4.0v 6 5 speed auto
    Hi, I just bought a new 2018 4runner, 4.0v6, and would like to know if anyone has replaced exhaust, or muffler and increased the power and or gas mileage. is less back pressure a good thing to do on these? I know some v6 engines it will have the reverse effect.
     
  2. Jul 6, 2018 at 4:09 PM
    #2
    Barcelona Trail

    Barcelona Trail New Member

    Joined:
    Jun 17, 2018
    Member:
    #6282
    Messages:
    108
    Gender:
    Male
    Colorado in Winter - SoCal in Summer
    Vehicle:
    '16 TEP w/ KDSS
    Bilstein 6112/5100/B12 - Built Right UCAs - AFE Intake, TBS, & Exhaust - Pedal Cmndr - Icon Rebound - 285 BFG KO2
    Today, I purchased the AFE Intake, Throttle Body Spacer, and Exhaust (20% off through AFE web). Suggested +36HP total. Intake is on back order until next week. Will post pics and thoughts once installed.
     
  3. Jul 6, 2018 at 5:40 PM
    #3
    JBTRD

    JBTRD As usual, saying something stupid

    Joined:
    Apr 2, 2016
    Member:
    #1809
    Messages:
    555
    Gender:
    Male
    First Name:
    Jeremy
    Texas
    Vehicle:
    2016 trail
    These trucks are not race cars, they are meant to be a serious off road truck. If you really want power there is a super charger if you want to shell out 6k. Other wise preformance mods other than that dont really provide much to these trucks.
     
    4runningMan likes this.
  4. Dec 5, 2019 at 8:47 PM
    #4
    Blue 4ever Runner

    Blue 4ever Runner New Member

    Joined:
    Aug 17, 2019
    Member:
    #10935
    Messages:
    81
    Gender:
    Male
    First Name:
    Jim
    Vehicle:
    2019 Blue 4Runner
    Blacked out badges, window deflectors, smoked 3rd brake light. I have a Borla muffler on order as well as some color matched engine cover stickers. I'll be painting the stock wheels soon as well. Falken tires in the fall as well.
    Barcelona Trail likes this.

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