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Suggestions for performance upgrades for '05 SR5

Discussion in '4th Gen 4Runners (2003-2009)' started by LongsPeak95, Jul 22, 2022.

  1. Jul 22, 2022 at 9:02 AM
    #1
    LongsPeak95

    LongsPeak95 [OP] New Member

    Joined:
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    Tampa
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    2005 4Runner SR5
    I have a great '05 SR5 and would appreciate suggestions for performance upgrades that can be DIY. I am familiar with working on vehicles but I do not weld.
    Thanks!
     
  2. Jul 22, 2022 at 5:37 PM
    #2
    spencermarkd

    spencermarkd New Member

    Joined:
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    Spencer
    Pullman, WA
    Vehicle:
    2007 Driftwood Pearl SR5
    Define performance...

    Not much you can do to boost HP #'s on these unless you literally apply boost in supercharger or turbo form. Suspension is pretty easy to improve height and ride though and there are a billion threads on here about that.
     
    LongsPeak95 [OP] likes this.
  3. Jul 22, 2022 at 6:50 PM
    #3
    negusm

    negusm New Member

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    By the turn of this century, engineers pulled as much hidden power out of an engine as they could. Anything small you do won't make any difference and have a potential to make problems.

    Best thing is to just try and make it run as well as it came from the factory. New oem plugs, wires. Balance and rated injectors. New MAF. Clean Throttle Body. New OEM air filter, fuel filter. Remove any dead weight.
     
    LongsPeak95 [OP] likes this.
  4. Aug 19, 2022 at 5:59 PM
    #4
    LongsPeak95

    LongsPeak95 [OP] New Member

    Joined:
    Sep 4, 2015
    Member:
    #938
    Messages:
    38
    Gender:
    Male
    Tampa
    Vehicle:
    2005 4Runner SR5
    Thanks! I cleaned the MAFS and am going to replace plugs. I considered replacing the coils at the same time, but I read in another thread that, unless a coil(s) is giving problems, it is better to leave them alone. Is it difficult to clean the throttle body?
    Also, any suggestions as to why my fog lights stopped working? They are LED, and I have replaced their relay as well as the 15amp mini fuse. They worked for a few weeks after installation, but now will not turn on at all.
     

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