Whiteline 15-18 BMW M3 / 15-20 M4 / 16-21 M2 Front Control Arm

The Whiteline KTA285 front tension strut arm upgrade is a purpose-built solution for drivers who want sharper braking response, improved turn-in, and added front-end adjustability without sacrificing street manners. Designed to address the significant loads placed on the front tension strut (also known as the thrust arm) under braking and corner entry, this upgrade delivers tangible performance gains where it matters most.

Additional Information

Whiteline Radius Arm Lower - Arm

• Protective powder coating acts as a hard skin that is much tougher than conventional paint allowing this product to withstand the toughest conditions and resist corrosion for years to come.

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Product Downloads

#	Document Type	Download
1.	Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information

Radius Arms, Front, Lower, Aluminum, Natural, Elastomer Bushings, BMW, Pair

Whiteline offers radius arms for a wide range of vehicles. These heavy-duty adjustable control arm kits are designed to allow for increased range of camber adjustment. Low compliance bushings are used to minimize NVH and maximize longevity; and left/right hand thread adjustment turn-buckle nuts allow for easy on-car adjustment. Most would agree that the time and stress to remove and replace bushings and ball joints to suspension arms can be hard to justify. Making up press tools and damaging arms are just two of the problems one can endure. Why put yourself through it when you can purchase complete arms, fitted with market leading Whiteline synthetic elastomer bushings and premium quality ball joints (if applicable).

Additional details:
• The latest in material formulation technology boasts resistance to oil, grease, ozone and weathering
• Supplied with extreme pressure molybdenum disulphide (LM) based grease for extended life
• Designed with the installer in mind by reducing the need of specialized skills, tools and equipment
• Engineered to alter/ optimize caster alignment to maximize tire contact patch during roll, improve turn-in response and increase directional stability
• Protective E-coat powdercoating acts as a hard skin that is much tougher than conventional paint, allowing this product to withstand the toughest conditions and resist corrosion for years to come
• Install guide included, providing detailed instructions on how to install your new purchase