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2-3" Foam Cell Pro Suspension Lift Kit for Toyota 4Runner (2010-2024) with KDSS
2-3" Foam Cell Pro Suspension Lift Kit for Toyota 4Runner (2010-2024) with KDSS
2-3" Foam Cell Pro Suspension Lift Kit for Toyota 4Runner (2010-2024) with KDSS
2-3" Foam Cell Pro Suspension Lift Kit for Toyota 4Runner (2010-2024) with KDSS
2-3" Foam Cell Pro Suspension Lift Kit for Toyota 4Runner (2010-2024) with KDSS
2-3" Foam Cell Pro Suspension Lift Kit for Toyota 4Runner (2010-2024) with KDSS
2-3" Foam Cell Pro Suspension Lift Kit for Toyota 4Runner (2010-2024) with KDSS
2-3" Foam Cell Pro Suspension Lift Kit for Toyota 4Runner (2010-2024) with KDSS
2-3" Foam Cell Pro Suspension Lift Kit for Toyota 4Runner (2010-2024) with KDSS
2-3" Foam Cell Pro Suspension Lift Kit for Toyota 4Runner (2010-2024) with KDSS
2-3" Foam Cell Pro Suspension Lift Kit for Toyota 4Runner (2010-2024) with KDSS
2-3" Foam Cell Pro Suspension Lift Kit for Toyota 4Runner (2010-2024) with KDSS
2-3" Foam Cell Pro Suspension Lift Kit for Toyota 4Runner (2010-2024) with KDSS
2-3" Foam Cell Pro Suspension Lift Kit for Toyota 4Runner (2010-2024) with KDSS

2-3" Foam Cell Pro Suspension Lift Kit for Toyota 4Runner (2010-2024) with KDSS

SKU: TOY065KP-KDSS

Twin-Tube Design

Foam Cell Technology

Ride Height Adjustable

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4 Year/Unlimited Mile Warranty

For Long-Term Use/Rebuildable Design/Engineered to Outperform OEM

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Selection Helper

Stage Options for Toyota 4Runner w/ KDSS

Stage 1

Stage 1 offers a complete suspension kit with all the necessary components to lift your vehicle and fit custom wheels and tires for better off-road performance.

Stage 2

Stage 2 includes our Pro Forge Upper Control Arms, which help correct your vehicle's geometry back to OEM specifications when lifted. This helps reduce unnecessary wear and tear over time on your vehicle's other suspension components.

Stage 3

Stage 3 includes rear adjustable lower trailing arms for added strength and durability over stock arms while also allowing for adjustability and fine-tuning to accommodate an added lift.

Load Options

Light Load

Light load will allow your vehicle to ride similarly to stock for comfort and with little additional payload support.

Medium Load

Medium load gives you the most versatile driving experience. We almost always recommend medium load for vehicles that are occasionally loaded on the weekends but are driven daily without weight during the week. This gives your vehicle the most comfortable and practical ride for most types of off-roaders.

Heavy Load

Heavy load will allow you to carry extra weight when loaded AT ALL TIMES. We recommend this option only for vehicles that are constantly loaded with the listed minimum additional payload weight all the time. If not, your vehicle will be a stiff and uncomfortable ride.

Extra-Heavy Load

Extra heavy loads require a significant amount of additional weight. We recommend you add up all of the additional gear you will have in your vehicle at all times to make sure it meets the minimum listed additional payload. Contact our customer service before ordering extra heavy load springs.

Never exceed the vehicle manufacturer’s stated Gross Vehicle Mass (GVM). Exceeding the GVM can compromise vehicle safety, performance, and handling, and may void the manufacturer’s warranty. Always consult your vehicle’s owner manual or manufacturer for the correct GVM specifications before loading your vehicle. Use all equipment and accessories responsibly and in compliance with applicable laws and regulations.

Product Information

Overview

Heavy-Duty Performance Suspension - Built for the Extreme

Foam Cell Pro is IRONMAN 4X4's most durability-focused suspension system. It's engineered to perform under sustained heat, constant load, and harsh terrain - day after day - without retuning, readjustment or rebuild schedules.

TRUSTED PERFORMANCE

  • Developed for extreme environments
  • Designed to handle sustained load and heat
  • Set-and-forget performance
  • Proven in demanding, real-world conditions
  • Backed by a 4-year warranty

Choose Foam Cell Pro if you:

  • Carry constant front and/or rear weight
  • Tow regularly
  • Travel long distances on mixed terrain
  • Want durability over adjustability
  • Don't want tuning knobs or rebuild schedules

WHERE FOAM CELL PRO FITS

Not all suspension systems are designed for the same job.

  • Lift & Level - Improves stance, tire clearance, and maintains factory ride feel
  • Nitro-Gas - OEM+ strength for daily driving and light off-road use
  • Foam Cell Pro - You are here
  • Maximum durability
  • Consistent performance under heavy load
  • Long days, long distances, rough terrain
  • IM2.5 - High-performance monotube suspension focused on responsiveness and comfort

Foam Cell Pro is for owners who value dependability over adjustability - and confidence over constant tweaking.

Stage 1 Includes:

  • Front Foam Cell Pro Coilovers
  • Rear Adjustable Panhard Bar KDSS Compatible
  • Rear Sway Bar Relocation Brackets KDSS Compatible
  • Rear Foam Cell Pro Shocks
  • Rear Coil Springs

Stage 2 Includes:

  • Stage 1 Components
  • Pro Forge Upper Control Arms

Stage 3 Includes:

  • Stage 1 & 2 Components
  • Rear Adjustable Lower Trailing Arms
Built for the Extreme

Heavy-Duty Performance Suspension

Military Derived

WHY FOAM CELL PRO EXISTS

Foam Cell Pro didn’t start as a consumer product.

It started as a military requirement.

The original brief was simple and unforgiving: build a suspension system that could operate reliably in extreme heat and cold, carry the constant weight of up-armored vehicles, and survive day after day of harsh terrain and abuse — without failure or maintenance interruptions.

Complex adjustable valving wasn't the priority. Dependability was — so operators could focus on the mission, not their equipment.

That requirement shaped everything that followed.

THE MECHANISM

Foam Cell Technology — Built for Heat and Load

Most gas-charged shocks rely on pressurized nitrogen. Under prolonged heat and heavy use, that gas can aerate — leading to fade and inconsistent performance.

Foam Cell Pro takes a different approach.

By replacing nitrogen with a high-density foam cell sleeve, the system:

  • Eliminates cavitation
  • Maintains consistent damping
  • Handles extreme temperature swings
  • Performs reliably under constant load

This is why Foam Cell Pro excels in:

  • Long-distance touring• Heavy accessories (bumpers, winches, drawers)
  • Towing
  • Sustained off-road travel

Ride Quality

Suspension should start with the job required of it — not the spec sheet. Foam Cell Pro is engineered around that principle.

  • Controlled, planted behavior on road and trail
  • Predictable handling under load — bumper, winch, drawers, and all
  • Geometry maintained as your build adds weight over time

This is not a race shock, and it is not built for constant tuning. It is matched to the truck you are actually building — the one that gains weight with every accessory and needs to stay dialed in as it does.

That is the kind of quality you appreciate on year three, not just mile three.

Foam Cell Pro vs Remote Reservoir Shocks

What Remote Reservoir Shocks Are Optimized For

Remote reservoir shocks are excellent at:

  • Increasing total oil volume, improving thermal capacity
  • Improving heat management during repeated high-speed cycling
  • Often offer compression and/or rebound adjustability
  • Support performance-oriented valving for aggressive driving conditions (i.e. racing)

They are commonly chosen for:

  • High performance-focused builds designed for speed
  • Highly aggressive off-road driving styles
  • Applications involving repeated high-energy terrain
  • Owners who prefer tunable systems and understand servicing will be required

Remote reservoir shocks do not equal “better” but serve a different performance priority. Maintenance depends on usage, not just design.

What Foam Cell Pro Is Optimized For

Foam Cell Pro is engineered for:

  • Consistency over long distances
  • Constant vehicle load
  • Extreme temperature swings
  • Minimal maintenance
  • Set-and-forget reliability

Foam Cell Pro increases oil volume internally and replaces pressurized nitrogen with high-density foam, eliminating cavitation and reducing fade without external components.

Real-World Tradeoffs

FOAM CELL PRO REMOTE RESEVOIR SHOCKS
Long-distance consistency:
✔ Excellent ✔ Very good
Heat resistance:
✔ Excellent ✔ Excellent
Adjustability:
✔ Minimal ✔ Possible
Maintenance required:
✔ Minimal ⚠ Periodic rebuilds, typically 15K – 20K*
External components:
✔ None ✖ Hoses & reservoirs
Ideal for constant load:
✔ Yes ⚠ Depends on tuning, usually no.
"Set it and forget it":
✔ Yes ✖ No

Overall rating: 4.734426 / 5 from 305 reviews.

AI Generated Review Summary

The 2-3" Foam Cell Pro Suspension Lift Kit for Toyota 4Runner (2010-2024) with KDSS is highly regarded for its durability, ease of installation, and quality. Customers appreciate its performance under heavy loads and harsh terrain, along with its smooth and comfortable ride. The kit is designed for those who prioritize dependability over adjustability.

Summary topics

  • Lift Performance: 11%
  • Kit Quality: 23%
  • Installation Ease: 11%
  • Ride Comfort: 23%
  • Suspension Performance: 14%

Review topics: [fit, size, weight, issues, performance, quality, looks, value, shipping, packaging, durability, feels, improvement, finish, customer service, price, setup, instructions, arms, work, results, height, speed, support, warranty, set, service, ride, kit, suspension].

Review highlights

  • "The ride is greatly improved and I threw some 31" tires for the perfect classic look and style." — Brett B.
  • "The quality is outstanding on it and it is an amazing high quality lift." — Ben M.
  • "Amazing quality lift kit" — Chris H.

Reviews

Looks Good; Feels Good

"I bought a brand new 2024 Toyota 4Runner SR5 Premium and immediately installed the TOY065AAKPS3P - Foam Cell Pro Suspension Stage 3 kit with medium rate springs. The ride on pavement was noticeably tighter. It corners like a sport sedan, and the nose dive while braking was now gone. I have done some mild off-roading and it does really well. I have towed a small camper and largest u-Haul trailer. Virtually no sag under load while towing. I really like this kit. It seems well engineered and well executed."

— Rich Z. (5/5)

Definitely DIY installable, I’m replacing

"Definitely DIY installable, I’m replacing my first lift that is okay for a high school kid, I’m 70 so comfort is key on my fly fishing outings , my 17 ,6 speed manual Tacoma is decked out fully ."

— Jon E. (5/5)

So far so good

"I have had this 3. 5in foam cell pro lift for a couple years now and didnt want to leave a review right off the bat. I have medium duty springs front and back. At the time they only had the black springs for an option. Personally I would have rather had the green springs but oh well. I also have the upper control arms. The kit has served me well. I dont do alot of extreme off roading but have done some. The ride has been good on and off road. Better than the factory trd offroad setup. It took out the lean in the corners for the most part When I 1st had it installed it was a little noisy for the 1st 4 month or so in the front springs as far as squeeking sounds intermittently getting in and out of the truck and taking slow corners but it has worked its self out and I haven't noticed the sqeeks in a while. Customer service was great to work with and no matter how dumb my question was they took the time to answer. I would like to get their front bumper next but time and money will tell for that one day."

— Mark (5/5)

I love the new look and feel

"Had the 2” Foam Cell Pro lift kit installed and I immediately fell in love with the way my 200 series Land Cruiser looked after. Though it’s higher than 2” and it’s still new and settling in. I bought it to upgrade my worn out factory suspension. And to do some off-roading. Haven’t had the chance to test that out yet. But the ride is still comfortable for regular day to day driving, just looks better doing it now. Pics don’t do the looks justice."

— Jess C. (5/5)

Great quality, customer service is

"Great quality, customer service is top notch. Was not as simple to install as video implied, but took it to a shop and they installed for me. Stoked on the finished product, just what I needed for when my camper shell is installed."

— Becca W. (5/5)

This is the 2nd kit

"This is the 2nd kit I've purchased from Ironman. Planned to install it in a couple of weeks. 1st kit was great."

— Danny O. (5/5)

Switched to Foam Cell Pros from Bilstein 8112’s

"I made the switch to Foam Cell Pros from Bilstein 8112’s on my 5th gen 4Runner. I ran the 8112’s for 2 years and they were great units however they were always noisy (normal due to internals per Bilstein) and the Bilstein zinc shock body finish is garbage- regardless of using FluidFilm to protect in the winter months. I was most impressed with the quality and fit/finish of the Ironman kit and what a stellar ride you get with the Ironman setup. The whole kit was well packaged. The only issue I had with install was having to lookup on the Ironman YouTube page was the correct orientation of the rear shock top mount bushing. It would be nice if that was explained in the directions provided but easy enough to watch their video to see exactly the right order of washers etc. When I placed my order on a Tuesday night my items did not ship out until the following Monday which was frustrating however the fedex shipping got the package to me by that Wednesday. I am happy with this product and would recommend it to other 5th gen 4Runner owners. I hope the finish on these suspension components hold up better than the Bilstein. Thanks."

— AG (5/5)

Easy install, fast shipping, great ride

"Arrived quickly, only problem with delivery was one of my rear shocks poked out of the box and I was worried about the threads being messed up but everything was good. Install took about 4 hours for all 4 corners. I’m convinced my truck is higher than 2 inches but the factory rake was kept and it looks great. I went with heavier springs front and rear, the front was just light load but I went medium with accessories in the rear and it is heavy duty. Body roll is almost non existent, it takes hard hits much easier now. The ride is much stiffer but I knew what I was getting into. Once overlanding season rolls around again I’ll have more weight in the bed and it should even out. Overall very happy, I only have about 500 miles on the lift so far and haven’t taken it offroad. One suggestion I have for anyone getting this kit is to get extended brake lines or a bracket to relocate brake lines. Tundras are very short in the rear. I would go with the extended panhard bar better yet a panhard bar relocation bracket that."

— Blake (5/5)

Absolutely great lift kit! All

"Absolutely great lift kit! All the parts are great quality and the install went smoothly. No clunks or bumps, and the ride is much better than before. 100% recommend!"

— Margie e. (5/5)

Great ride easy to install one stop shop

"I love the lift. It’s a one stop shop no matching components from different companies. No trial and error. The only thing I would have done differently is go with the additional load vs the gvw load rear leafs due to the hard ride . Other wise i 100% recommend this kit. Took my taco on a 2000 mile trip immediately after install fully loaded the truck drive like a dream, not bouncy just firm but comfortable ."

— Donald H. (5/5)

Q&A

I'm looking at the 4Runner w/ KDSS Foam Cell Pro kits, only interested in a moderate lift (2"), and want to retain some of the factory rake angle. I do not want to compromise the function of my KDSS system (on road or off road). At what degree of lift are the trailing arms recommended? Some lift and leveling kits do not specify changing the UCAs or the Panhard rod - again, at what degree of lift is this recommended? I plan on retaining my factory 265/70R17s for now and would probably replace them with 255/80R17 in the future, I have the TRD rims and will stick with those. If I order one of your kits, I would also order your Raid front bumper and a 9500 lb winch w/ synthetic line - this looks to be around 180# additional load in the front of the vehicle. I don't plan on carrying heavy loads in the back, certainly not any constant loads. The springs for this loading appear to be heavy load in the front and medium load in the back.
I would recommend doing 2.5" heavy load in the front and 2" medium load in the rear to still keep some of the factory rake and compensate for the added weight in the front!
What is the difference between (PART NUMBER: TOY065KPS2-KDSS) and (PART NUMBER: TOY065KPS3-KDSS)? Also, how do I know if I need a rear airbag delete kit? I have a 2022 Toyota 4Runner Offroad Premium.
The difference is that the stage 3 includes lower trailing arms (LTA003-4R). Checkout this video here: https://www.youtube.com/watch?v=BQT7SklwOyU&t=386s This will show you what an air suspension looks like.
What wheel size and offset would these require for a 2020 KDSS 4 runner TRD off road premium? is it 0 or -12? Thanks
All wheel and tires are different. We would recommend a visit to your local tire shop for accurate fitment/advice.
Do the foam cell pro’s have linear valving?
Yes they do.

2-3" Foam Cell Pro Suspension Lift Kit for Toyota 4Runner (2010-2024) with KDSS FAQs

What is Foam Cell Pro designed for?

Foam Cell Pro is designed for durability, consistency, and long-term performance under load.

It is ideal for:

  • Vehicles carrying constant weight (bumpers, winches, drawers, campers)
  • Towing
  • Long-distance touring
  • Rough terrain over extended periods
  • Owners who want reliability without tuning or rebuild schedules

It is not designed as a race or high-adjustability shock.

How is Foam Cell Pro different from Lift & Level or Nitro-Gas kits?

Each system serves a different purpose:

  • Lift & Level — Improves stance and tire clearance while maintaining factory-like ride. Budget-friendly. Not intended for off-road use.
  • Nitro-Gas — Stronger than OEM, suitable for daily driving and light off-road.
  • Foam Cell Pro — Built for heavy load, heat management, long-term durability, and heavy off-road use.
  • IM2.5 — High-performance monotube suspension focused on responsiveness and comfort on and off-road.

Foam Cell Pro sits in the durability-first tier.

Why does Foam Cell Pro not use gas like other shocks?

Foam Cell Pro uses high-density foam instead of pressurized nitrogen.

This design:

  • Eliminates gas cavitation
  • Reduces shock fade under sustained heat
  • Maintains consistent damping over long distances
  • Performs reliably in extreme hot and cold conditions

This is the core reason Foam Cell Pro excels under load and over time.

Is Foam Cell Pro adjustable?

Yes, it is ride-height adjustable only. Foam Cell Pro is a set-and-forget suspension system, once you customize to your build’s unique ride height needs when installing.

It is engineered with vehicle-specific valving to deliver consistent performance without:

  • External adjusters
  • Tuning knobs
  • Rebuild intervals

If you want to adjust the tuning, you will need to rebuild the shock and adjust the valving and shim stack.

How does Foam Cell Pro ride on road?

Foam Cell Pro delivers a controlled, stable, and planted ride.

Compared to factory suspension:

  • It may feel firmer when unloaded
  • It feels more composed and comfortable when loaded
  • It improves stability when towing or carrying accessories

This is intentional and part of its durability-focused design.

Is Foam Cell Pro comfortable for daily driving?

Yes, especially for vehicles that:

  • Carry accessories
  • Tow
  • See mixed on-road and off-road use

If your vehicle is completely stock and you only want a softer factory feel, Lift & Level or Nitro-Gas may be more appropriate.

Does Foam Cell Pro provide lift?

Yes. Foam Cell Pro kits are designed to:

  • Increase ride height up to 4”
  • Correct stance
  • Support larger tires

Exact lift height depends on vehicle configuration and load.

Do I need other upgrades to run Foam Cell Pro?

No additional upgrades are required but performs best when used as designed.

Foam Cell Pro is best paired with:

  • Steel bumpers
  • Winches
  • Drawer systems
  • Canopies or campers

It is designed to handle this added weight and reaches peak performance when under additional load.

Is Foam Cell Pro good for towing?

Yes. Foam Cell Pro is well suited for towing, providing improved stability, control, and consistency compared to OEM suspension.

Is Foam Cell Pro rebuildable?

Yes, it is fully rebuildable so you can buy once cry once.

However, Foam Cell Pro is engineered for long service life without routine rebuilds. This reduces maintenance, downtime, and long-term ownership cost.

Can I talk to a product specialist before ordering?

Absolutely. Send your vehicle details, intended use (daily, towing, overlanding), and current mods, and we’ll recommend the correct configuration the first time. You can contact us here.

Do you have installation instructions or a manual?

Yes—many products include instructions in the box and/or downloadable PDFs. Check the product page for “Vehicle Fitment & Installation/User Guide” tab. If you don’t see it, contact support here and we’ll send the correct install guide for your SKU.

How long does shipping take and do you ship freight?

Small items typically ship parcel; oversized items (bumpers, tents, long packages) ship freight, which is noted on the product page under the add to cart button. Transit time varies by location and carrier. We typically ship orders within 2 business days of purchase.

What’s your warranty coverage?

Warranty varies by product category. The product page lists the applicable warranty under the add to cart button. If you want confirmation before ordering, contact us or see our warranty policy here.

What is your return policy?

Returns are accepted under our returns policy within 30 days of purchase. See our return policy here for full details. Because many items are vehicle-specific, verify fitment before installing. For the quickest help, contact us with your order number and the item condition.

Toyota 4Runner (2010-2024) with KDSS 2-3" Foam Cell Pro Suspension Lift Kit

The 2-3" Foam Cell Pro Suspension Lift Kit for Toyota 4Runner (2010-2024) with KDSS is engineered to enhance off-road performance and improve ride quality while maintaining compatibility with the factory KDSS system. Designed for drivers who need increased ground clearance, better suspension control for trails and washboard roads, and improved load handling for overland builds, this lift kit delivers the comfort, durability, and capability expected from one of the best lift kits for the Toyota 4Runner. Whether you are fitting larger tires, upgrading for overlanding, or improving your daily driving comfort with a premium off-road suspension system, this IRONMAN 4X4 lift kit helps your 4Runner stay stable, capable, and adventure-ready.