NP BMW E36/E46 Billet control arms

BMW E36 / E46 Billet Adjustable Rear Control Arms

The BMW E36/E46 Billet Rear Control Arms are precision-engineered replacement control arms designed for BMW E36 and E46 chassis platforms. CNC-machined from 6082-T6 aluminium billet with motorsport-grade spherical bearings, these control arms offer 30 mm of length adjustability for precise rear suspension geometry alignment, significantly improving on the fixed-length OEM rubber-bushed arms they replace.

Developed for both motorsport competition and performance road use, these control arms are engineered to withstand the higher loads generated in aggressive driving conditions while providing the alignment flexibility required for track setup and corner-weight optimisation.

Key Features & Benefits

• CNC machined from 6082-T6 aluminium – lightweight and strong, machined to precise tolerances for direct chassis fitment
• 30 mm length adjustability – enables rear camber and toe alignment adjustment that is not possible with fixed OEM control arms, critical for corner-weight setup and circuit geometry optimisation
• Motorsport-grade spherical bearings – eliminate the compliance of OEM rubber bushings, providing predictable, responsive suspension behaviour with consistent geometry under load
• Designed for lowered chassis – arm geometry is compatible with lower suspension configurations (bowed top control arm design) commonly found on track-prepared E36/E46 vehicles
• Sway-bar mounting on top control arm – retains anti-roll bar compatibility with the original suspension layout
• Anodized finish – surface protection for long-term corrosion resistance in harsh driving conditions
• Lightweight construction – reduced unsprung mass improves wheel control and suspension response compared to heavy OEM arms

Materials & Construction

• 6082-T6 aluminium billet – CNC-machined from solid aluminium for consistent geometry and a high-quality anodizable surface
• Motorsport-series spherical bearings – metal-on-metal pivot bearings for precise, compliance-free suspension kinematics
• Anodized surface treatment – hard anodize on all aluminium surfaces for corrosion resistance and durability

Vehicle Compatibility

• BMW E36 (3-Series, M3, Compact, Touring)
• BMW E46 (3-Series, M3)

Applications

• Circuit racing geometry setup and rear camber adjustment
• Motorsport preparation on lowered E36/E46 platforms
• Track-day setup requiring adjustable rear alignment
• Endurance or sprint racing requiring geometry flexibility
• Street performance vehicles with suspension modifications

Why Adjustable Control Arms Are Important

OEM BMW E36 and E46 rear control arms use rubber bushings and fixed lengths, providing a fixed rear alignment geometry that cannot be adjusted without replacing the arms entirely. When a vehicle is lowered, corner-weighted, or prepared for circuit use, OEM rear geometry often falls outside the adjustable range of the standard setup, resulting in incorrect camber, inconsistent tyre wear, and compromised handling. The BMW E36/E46 Billet Rear Control Arms address this with 30 mm of length adjustability and spherical bearings, enabling precise, independent rear alignment correction without compromise.

Technical Information

• Product type: Billet aluminium adjustable rear control arms
• Compatibility: BMW E36 and E46
• Length adjustment: 30 mm
• Material: CNC-machined 6082-T6 aluminium
• Bearings: Motorsport-grade spherical bearings
• Finish: Anodized
• SKU: CA E36
• Condition: New