1. Welcome to 4Runners.com!

    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 4Runner discussion topics
    • Transfer over your build thread from a different forum to this one
    • Communicate privately with other 4Runner owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

Ironman Foam Cell Pro plus/minus KDSS

Discussion in 'Suspension' started by Klinsman55, Jul 18, 2022.

  1. Jul 18, 2022 at 7:55 AM
    #1
    Klinsman55

    #1
    Klinsman55 [OP] New Member

    Joined:
    Jun 25, 2020
    Member:
    #15122
    Messages:
    358
    Gender:
    Male
    First Name:
    K
    Northern Nevada
    Vehicle:
    2024 LE silver
    XREAS. Cooper Discoverer Road and Trail AT 255/75r17. Trd Pro Wheels
    Thinking I’ve narrowed down my suspension/shock upgrade to the Ironman FCP.

    just wondering if my 4Runner I get I should do KDSS or not?

    Not sure if there would be any significant benefits of having upgraded shocks plus KDSS?
     
    Klinsman55, Jul 18, 2022
    #1
  2. Jul 18, 2022 at 8:40 AM
    #2
    Thatbassguy

    #2
    Thatbassguy New member? Really??

    Joined:
    Mar 27, 2019
    Member:
    #9314
    Messages:
    13,821
    Gender:
    Male
    First Name:
    James
    S/E Wisconsin
    Vehicle:
    2019 TRDORP, KDSS, MGM
    RSG sliders, Yakima offgrid basket, Pro-Comp wheels, SOS Streamline bumper and skids, Warn VR EVO10S winch + Ultimate Sidewinder, Bilstein 6112 + 5100 + rear lift coils, Rigid Dually SS ditch lights w/Caliraised brackets and OEM style dash switch
    KDSS acts as a partial sway bar disconnect at low speed. It can be beneficial over the stock sway bars on technical trails. The on-road stability is a secondary benefit. Shocks have no affect on its function.

    It gets complicated when you switch to an extended or long travel suspension. Even though it can still allow better side to side articulation, it eventually limits overall droop.

    I recommend it for weekend warriors who don't plan major suspension modification, like long travel or a sway bar delete. If you plan on going really crazy with your build, I'd skip it.

    There's a great video on YouTube the does a great job explaining the pros and cons.

    Edit to add link:

    https://youtu.be/Ueshf401B0k

    If you get it, remember to regularly clean inside of the accumulator skid, as the accumulator can get corroded and expensive to replace.
     
    Thatbassguy, Jul 18, 2022
    #2
    Crank_Mancastle and Klinsman55[OP] like this.
  3. Jul 18, 2022 at 4:39 PM
    #3
    Shock Surplus

    #3
    Shock Surplus New Member

    Joined:
    Jul 7, 2022
    Member:
    #27724
    Messages:
    33
    Vehicle:
    2016 4Runner Trail
    3 Linked Rear, 35s
    Pretty much this, that video is a great starting point in trying to understand the KDSS system. I had the KDSS system on my 2016 4Runner and had 0 complaints about it. The on-road manners were great on the truck because of it. If I could've kept the system active with my current set up I would've, but it all depends on where you plan to take the build. If you don't plan on doing any long travel modifications I would definitely suggest getting a KDSS if you can
     
    Shock Surplus, Jul 18, 2022
    #3
    Klinsman55[OP] and Thatbassguy[QUOTED] like this.
  4. Jul 18, 2022 at 7:22 PM
    #4
    Klinsman55

    #4
    Klinsman55 [OP] New Member

    Joined:
    Jun 25, 2020
    Member:
    #15122
    Messages:
    358
    Gender:
    Male
    First Name:
    K
    Northern Nevada
    Vehicle:
    2024 LE silver
    XREAS. Cooper Discoverer Road and Trail AT 255/75r17. Trd Pro Wheels
    my friend has 4Runner with KDSS and Ironman Foam Cell Pro shocks and I sat in passenger seat while he drove it around on road. Felt pretty solid, no bouncy feel or rolling or noise dive etc. small road imperfections were soaked up crisply without disturbing interior. Unfortunately he just had his rig waxed so he didn’t want to take it down a dirt road
     
    Last edited: Jul 19, 2022
    Klinsman55, Jul 18, 2022
    #4
  5. Jul 18, 2022 at 10:24 PM
    #5
    Thatbassguy

    #5
    Thatbassguy New member? Really??

    Joined:
    Mar 27, 2019
    Member:
    #9314
    Messages:
    13,821
    Gender:
    Male
    First Name:
    James
    S/E Wisconsin
    Vehicle:
    2019 TRDORP, KDSS, MGM
    RSG sliders, Yakima offgrid basket, Pro-Comp wheels, SOS Streamline bumper and skids, Warn VR EVO10S winch + Ultimate Sidewinder, Bilstein 6112 + 5100 + rear lift coils, Rigid Dually SS ditch lights w/Caliraised brackets and OEM style dash switch

    KDSS doesn't affect nosedive. Upgraded shocks will, though.
     
    Thatbassguy, Jul 18, 2022
    #5
  6. Jul 19, 2022 at 6:52 AM
    #6
    Klinsman55

    #6
    Klinsman55 [OP] New Member

    Joined:
    Jun 25, 2020
    Member:
    #15122
    Messages:
    358
    Gender:
    Male
    First Name:
    K
    Northern Nevada
    Vehicle:
    2024 LE silver
    XREAS. Cooper Discoverer Road and Trail AT 255/75r17. Trd Pro Wheels
    Oh. Forgot to add he also has the Ironman FCP shocks recently installed. Stage 3.
     
    Klinsman55, Jul 19, 2022
    #6
  7. Jul 19, 2022 at 7:15 AM
    #7
    Thatbassguy

    #7
    Thatbassguy New member? Really??

    Joined:
    Mar 27, 2019
    Member:
    #9314
    Messages:
    13,821
    Gender:
    Male
    First Name:
    James
    S/E Wisconsin
    Vehicle:
    2019 TRDORP, KDSS, MGM
    RSG sliders, Yakima offgrid basket, Pro-Comp wheels, SOS Streamline bumper and skids, Warn VR EVO10S winch + Ultimate Sidewinder, Bilstein 6112 + 5100 + rear lift coils, Rigid Dually SS ditch lights w/Caliraised brackets and OEM style dash switch
    Oh, I missed that. Most decent aftermarket shocks will take care of the nosedive.

    Edit: ...And improve overall stability.
     
    Thatbassguy, Jul 19, 2022
    #7
Register FREE to Reply!

Products Discussed in

Eibach Pro-Truck Lift System
$826.47+
To Top