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    Quick Links: TRD CAI in 2021 model Oil filter size Muffler and exhaust suggestions? Muffler length and performance? 4th Gen K&N Cold Air Intake

Performance

Toyota 4Runner performance (intakes, exhausts, etc)

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  1. Pedal Commander?

    Matt97, Apr 29, 2021
    Replies:
    21
    Views:
    2,426
    gunsnob
    Apr 30, 2021

  2. Transmission Fluid!

    jax410, Apr 19, 2021
    Replies:
    4
    Views:
    3,491
    captsolo
    May 20, 2021

  3. Replaced 19inch flowmaster muffler with 24inch Borla

    Chodermuffin, Apr 15, 2021
    Replies:
    0
    Views:
    985
    Chodermuffin[OP]
    Apr 15, 2021

  4. Do you put fuel additives ?

    taco_runner, Apr 14, 2021 ... 2
    Replies:
    55
    Views:
    12,425
    ARB1977
    Dec 12, 2021

  5. 70 mm Throttle Body on 4th Gen $runner

    4runnernutz, Apr 7, 2021
    Replies:
    0
    Views:
    923
    4runnernutz[OP]
    Apr 7, 2021

  6. 3rd Gen cat-back?

    SR5 Limited, Apr 3, 2021
    Replies:
    3
    Views:
    824
    SR5 Limited[OP]
    Apr 5, 2021

  7. Info. On 4 runner

    Cyn_sin, Mar 17, 2021
    Replies:
    4
    Views:
    1,295
    SlvrSlug
    Mar 17, 2021

  8. Sensor please help

    Chelle6421, Feb 10, 2021
    Replies:
    1
    Views:
    1,101
    oljedi11950
    Feb 10, 2021

  9. TRD Pro Exhaust

    Gossamer, Feb 1, 2021 ... 2 3 4
    Replies:
    113
    Views:
    35,072
    thomason84
    Mar 9, 2025

  10. 2021 engine performance Issues

    Trailblazzrr, Dec 5, 2020
    Replies:
    11
    Views:
    6,377
    4Runner fun
    Dec 15, 2020

  11. 4TH GEN T4R and REPLACEMENT TRD CAI FITMENT???

    caa010081, Nov 17, 2020
    Replies:
    0
    Views:
    2,243
    caa010081[OP]
    Nov 17, 2020

  12. TRD CAI in 2021 model

    seanzig, Nov 6, 2020
    Replies:
    10
    Views:
    6,071
    4Runner170V
    Nov 7, 2020

  13. Oil change fail

    Cindy, Oct 18, 2020
    Replies:
    21
    Views:
    4,605
    josephp732
    Sep 20, 2021

  14. Supercharging 1GR-FE

    DJNAUST, Oct 3, 2020
    Replies:
    11
    Views:
    5,591
    mZiggy
    Jul 7, 2022

  15. Hey need advice from the pro's again

    Silliw98, Sep 9, 2020
    Replies:
    1
    Views:
    927
    atgparker
    Oct 1, 2020

  16. Larger CAT and/or Exhaust

    taco_runner, Sep 7, 2020
    Replies:
    3
    Views:
    1,396
    PVT Pablo
    Oct 1, 2020

  17. K&N CAI Noise

    Rage_RunnerSR5, Sep 3, 2020
    Replies:
    0
    Views:
    815
    Rage_RunnerSR5[OP]
    Sep 3, 2020

  18. Lithium Battery in engine bay???

    TOGORUNNER, Aug 23, 2020
    Replies:
    8
    Views:
    4,713
    ryjod
    Sep 26, 2020

  19. Magnuson Supercharge Problem

    sgt100, Jul 31, 2020
    Replies:
    5
    Views:
    3,538
    jdm-v35
    Jan 25, 2025

  20. Best carb for offroad application?

    Sho_Tyme671, Jul 28, 2020
    Replies:
    3
    Views:
    1,265
    atgparker
    Oct 1, 2020

  21. 2020 Limited Flowmaster FlowFX Cabin Drone Problem

    magsrgod, Jul 27, 2020
    Replies:
    4
    Views:
    3,495
    SlvrSlug
    Oct 1, 2020

  22. Supercharger for 2020 4Runner

    skyshrink, Jul 19, 2020 ... 2
    Replies:
    58
    Views:
    18,186
    TDotCord
    Sep 20, 2022

  23. TRD catback exhaust and cold air intake concerns

    Gamma Ray, Jul 4, 2020
    Replies:
    5
    Views:
    2,187
    magsrgod
    Jul 27, 2020

  24. Exhausts in the $300-$350 price range?

    brudy4X4, Jun 28, 2020
    Replies:
    4
    Views:
    1,246
    brudy4X4[OP]
    Jun 29, 2020

  25. Gibson dual side outlet exhaust

    Jmurkli417, Jun 20, 2020
    Replies:
    0
    Views:
    1,199
    Jmurkli417[OP]
    Jun 20, 2020

  26. CAI and exhaust worth It???

    SeekNDestroy, Mar 21, 2020
    Replies:
    8
    Views:
    5,669
    2Trex
    Nov 20, 2020

  27. Toyota engine characteristics of the 4L v6 and the 4.7 v8

    tractor john, Jan 10, 2020
    Replies:
    1
    Views:
    1,114
    Dark Knight
    Jan 10, 2020

  28. Cheap TRD exhaust from factory?

    4Runner fun, Nov 27, 2019
    Replies:
    5
    Views:
    2,687
    ForRun
    Nov 27, 2019

  29. Seafoam - love it or hate it ???

    The Blue Pearl, Sep 1, 2019
    Replies:
    23
    Views:
    5,263
    Blackshirt
    Feb 21, 2025

  30. Mechanical help

    89d16a6, Jul 28, 2019
    Replies:
    25
    Views:
    2,680
    MyWyfsRnnr
    Feb 18, 2020

  31. Spoiler alert! Lol

    4Runner fun, Apr 17, 2019
    Replies:
    20
    Views:
    5,924
    4x Old Guy
    Dec 6, 2019

  32. 3rd Cruise Control: To add or not

    Firstoneman, Apr 4, 2019
    Replies:
    10
    Views:
    2,666
    HoBoDanny
    Apr 10, 2019

  33. GM’s V/8 to electric conversion?

    SR5 Limited, Dec 17, 2018
    Replies:
    0
    Views:
    2,145
    SR5 Limited[OP]
    Dec 17, 2018

  34. 2018 Programmer?

    Sparkkky, Oct 14, 2018
    Replies:
    4
    Views:
    2,631
    ruiz4251
    Oct 15, 2018

  35. K&N Cold air intake for sale

    mrzachary_iu, Sep 26, 2018
    Replies:
    0
    Views:
    1,422
    mrzachary_iu[OP]
    Sep 26, 2018

  36. Muffler and exhaust suggestions?

    TacoTeaser, Sep 8, 2018
    Replies:
    7
    Views:
    4,308
    Blue 4ever Runner
    Dec 5, 2019

  37. Pedal Commander Installed

    MaliciousV-18T4RORP, Sep 7, 2018
    Replies:
    13
    Views:
    7,495
    jtice
    Feb 22, 2019

  38. S&B filters anyone?

    totmacher, Aug 12, 2018
    Replies:
    5
    Views:
    2,067
    BluetheTruck
    Apr 11, 2019

  39. Doug Thorley Mid Pipes -and- Headers ?

    Barcelona Trail, Jul 6, 2018
    Replies:
    0
    Views:
    1,866
    Barcelona Trail[OP]
    Jul 6, 2018

  40. Exhaust tips on 4th gens

    06RoadRunner, Jun 28, 2018
    Replies:
    1
    Views:
    1,580
    Blue 4ever Runner
    Dec 5, 2019

  41. Whistle with TRD intake?

    CollinJ, Jun 8, 2018
    Replies:
    12
    Views:
    4,330
    Dangboi
    Apr 11, 2024

  42. School me, in the differences in platforms

    Kyblack76, May 22, 2018
    Replies:
    9
    Views:
    2,618
    Bullminner
    Jun 7, 2018

  43. "Rally driving" question.

    Elmo the Destroyer, May 3, 2018
    Replies:
    5
    Views:
    2,169
    Texoma
    May 10, 2018

  44. Weird Exhaust Smell?

    Elmo the Destroyer, May 2, 2018
    Replies:
    0
    Views:
    1,349
    Elmo the Destroyer[OP]
    May 2, 2018

  45. Gutless

    Sk8pilot, Mar 22, 2018
    Replies:
    14
    Views:
    3,507
    rkwfxd
    Mar 27, 2018

  46. Thoughts on Weapon R intake?

    Sneakynoshoulders, Mar 12, 2018
    Replies:
    0
    Views:
    1,243
    Sneakynoshoulders[OP]
    Mar 12, 2018

  47. 2018 Exhaust re-route

    SteveNJ, Feb 23, 2018
    Replies:
    0
    Views:
    1,163
    SteveNJ[OP]
    Feb 23, 2018

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

    my runner, Feb 20, 2018 ... 2
    Replies:
    39
    Views:
    13,439
    BortisYeltzen
    Apr 4, 2023

  49. K&N kit on a 2018 Off-Road, what an expensive piece of crap.

    askdrtodd, Feb 15, 2018
    Replies:
    27
    Views:
    4,585
    Barcelona Trail
    Feb 28, 2020

  50. Pedal Commander review

    WTW15, Jan 16, 2018 ... 2 3
    Replies:
    88
    Views:
    51,148
    Jrunr
    Nov 3, 2021
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