IM2.5 Monotube

Suspension Built For Performance

2.5” Monotube Aircraft-Grade Aluminum Construction

The 2.5” extruded monotube body is made from 6061-T6 aircraft-grade lightweight aluminum, offering up to 4x better heat dissipation and 30% weight saving than steel for enhanced durability and cooling efficiency.

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Large 57mm Billet Aluminum Piston

The CNC-machined billet aluminum piston offers 60% more surface area than traditional designs, enabling precise valve tuning for exceptional ride comfort and control.

Premium Build Materials

High-pressure (200PSI) nitrogen gas, NOK seals, and Fuchs hydraulic oil contribute to long-lasting durability and high-performance under extreme conditions.

Velocity-Sensitive Design

The monotube damper adjusts seamlessly to changing terrain, providing a plush, smooth ride on highways and responsiveness on rugged trails.

Type 2 Anodized Corrosion Resistant Finish

Military grade anodized corrosion resistant finish withstands harsh weather, mud, and road grime for extended durability and reliability.

Double-Bonded Natural Rubber Bushings

Built with double-bonded natural rubber bushings for superior durability and resistance to weather and environmental elements, offering hassle-free performance and reliability.

Robust Dirt Shield

The shock absorber features a replaceable dirt and stone shield guarding the hardened piston rod and seals against debris and damage.

Adjustable Coilover System

Equipped with an Acme-threaded body, the IM2.5 allows for infinite tuning of the ride height to suit different loads and driving scenarios.

Covered for the Unexpected

Backed by IRONMAN 4X4’s 4-year unlimited-mileage warranty, —unlikely to be needed thanks to the IM2.5’s legendary durability, but there just in case the unexpected finds you.

Unmatched Durability and Longevity

The IM2.5 Monotube Suspension is engineered for unmatched durability and longevity, eliminating the need for regular servicing required by comparable shocks, thanks to its advanced design and premium materials—though fully rebuildable, it's built to perform flawlessly without maintenance.

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IM2.5 Monotube

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	IM2.5	Foam Cell Pro	Nitro Gas	All-Terrain Systems (ATS)	Lift & Level
	Learn More	Learn More	Shop Now	Learn More	Learn More
Built-For:
	Performance enthusiasts, lightly & heavily loaded trucks and SUVs, and daily driven trucks and SUVs.	Overlanders, outdoor enthusiasts, heavily loaded trucks and SUVs, and daily driven trucks and SUVs.	Weekend warriors and daily driven trucks and SUVs.	Exclusively for outdoor enthusiasts driving RAV4 \| Crosstrek \| Forester \| Outback.	Daily driven trucks and SUVs.
Load Ratings:
	Light, Medium	Light, Medium, Medium Plus, Heavy, Extra Heavy	Light, Medium, Medium Plus, Heavy, Extra Heavy	Medium, Heavy	OEM
Price:

Technology:
	Monotube technology Advanced monotube technology allows for precision performance for a comfortable on/off-road ride.	Foam Cell technology Allows for increased oil capacity without needing a traditional nitrogen charge making the Foam Cell shock virtually indestructible with almost no maintenance.	Nitrogen-charged Durable twin tube shock design with nitrogen-charge and increased shock diameter over stock, allowing better performance on and off road for little investment.	Nitrogen-charged Durable twin tube shock design with nitrogen-charge and increased shock diameter over stock, allowing better performance on and off road for little investment.	Includes all necessary spacers and bracakets for lifting and leveling your truck without breaking the bank, allowing for bigger wheel and tires.
Shock Design:
	Monotube	Twin-Tube	Twin-Tube	Twin-Tube	Twin-Tube, shocks included with certain kits only.
Lift Height:
	Up to 3.5"	Up to 3.5"	Up to 3.5"	2"	Up to 3.5"
Off-Road Performance:

On-Road Performance:

Comfort:

Components:
	All our kits include all necessary components and hardware to lift your vehicle and offer increased performance over your stock suspension.
Shock Diameter:
	Up to 2.5"	Up to 2.8"	Up to 2.1"	Up to 2.1"	Up to 2.1"
Valving:
	Linear	Linear	Linear	Linear	Linear if shocks are included
Extended Travel:
	Yes	Yes	Yes	Yes	Yes when shocks are included
	Shop IM2.5	Shop Foam Cell Pro	Shop Nitro Gas	Shop ATS	Shop Lift & Level