Adjustable Front Tension Arm Kit

Take Control of Your BMW's Caster Angle and Roll-Center with these Race-Engineered Front Tension Arms  

Tension arms are used to adjust front-end caster angle, roll-center, and compensate for widening the front control arms when adding camber. Adding caster is an effective tool to dial in suspension handling. Increasing it can add straight line stability and improve weight transfer.

Upgrading to solid ball joints like the Heavy-Duty FK rod ends we use also increases responsiveness and decreases suspension geometry deviations during cornering and braking. You would be suprised to see how much the oem arms move around. 

Vehicle Fitment

• BMW E8X/E9X Non-M: E81, E82, E87, E88, E90, E91, E92 and E93
• BMW 1M and E9X M3: E82 1M, E90 M3, E92 M3 and E93 M3
• BMW F2X/F3X: F20, F21, F22, F23, F30, F31, F32, F33, F34 and F36
• BMW F8X: F80 M3, F82/F83 M4 and F87 M2
• Toyota GR Supra and BMW Z4: A90/A91 Supra and G29 Z4
• BMW G2X/G3X/G42: Select G-Series 2, 3 and 4 Series applications, including G20, G21, G22, G23, G26 and G42

Select the correct Vehicle Type when ordering. Arm dimensions, adapter fittings, hardware, and bump-steer shims vary between chassis.

Includes:

• Pair of adjustable arms
• Custom machined adapter fittings
• High-quality hardware
• Roll-center correction shims
• For even greater protection, pair this system with our optional ball joint boot kits for long-lasting performance and reliability. Available [HERE]

Check out the Instruction Manual, it includes tuning tips! [HERE]

Ever forget which way to tighten the LH and RH jam nuts? Fear no more! We use two different color jam nuts to make it easy to identify. 

Built for Performance & Longevity

Our Heavy-Duty FK Bearings are engineered for high misalignment and smooth, bind-free operation. Made from heat-treated 52100 steel and chrome-plated for durability, they feature a PTFE-lined alloy steel race that reduces friction, blocks dust, and ensures a longer service life. When replacements are needed, the design allows for easy part swaps, minimizing downtime and keeping you on the road or track.

An Investment in Performance

Upgrade your BMW’s suspension with a system built to last. Whether you’re hitting the track or carving corners on the street, this kit provides unmatched adjustability, durability, and reliability. Pair with our spare parts [HERE] to keep your system performing like new for years to come.

Drive harder, corner sharper, and enjoy the road with confidence

The items installed or applied to vehicles are intended strictly for off-road use only and track vehicles. These modifications may not comply with emissions, safety, or environmental regulations required for public road use under Environmental Regulatory Agency (ERA) laws. It is the sole responsibility of the vehicle owner or operator to ensure adherence to all applicable local, state, and federal regulations. Use on public roads may result in legal penalties or vehicle impoundment. Always verify compliance with local authorities before installation.

We get a large number of custom orders and requests everyday, so as a result it is not always possible for us to keep every item in stock at all times in our warehouse. If you require the item urgently please contact our sales team here to check the stock before you make your purchase.

If you're unsure whether a part will fit your vehicle, feel free to contact us here with your inquiry. Our helpful sales team will reach out to confirm if it's the right match for you.

We offer a flat-rate shipping fee across the continental United States. This excludes Alaska, Hawaii, and U.S. territories. For international orders, additional shipping costs will apply. Please contact us for a quote if you are outside the continental U.S.

Also, feel free to also contact us at ColoradoN5X@Gmail.Com for any other questions.

Not all items are covered by warranty. Items including warranty, will clearly state that there is warranty within the product description. Most of these items will be a standard 1-year warranty against manufacture defects. You, the customer, will be responsible for shipping and handling. We will fix/replace that item with a product that is in working condition if you meet the warranty criteria. Please note that you will be allowed ONLY 1 claim within the year for that product. ColoradoN5X is not responsible for any damage caused during the installation of our products.