SuperPro ALOY0046XK Alloy Aluminium Front Lower Control Arms / Wishbone Kit for BMW 3 Series E46 (non-M) & Z4 E85 E86 – Caster Increase, Polyurethane Bushes, M-Spec Ball Joints – Complete Front Suspension Upgrade/Replacement

SuperPro Aluminium Front Wishbone Kit for BMW E46 and Z4 E85 E86 – added caster for sharper steering

Part number: ALOY0046XK

Transform the front end of your BMW with this SuperPro aluminium front lower arm set. Designed for drivers who want precision, confidence and a fast-road feel, this complete assembly adds valuable caster, giving crisper turn in, better self centring and improved straight line stability. It replaces tired factory arms and rubber mounts with a high quality aluminium solution that resists flex, tightens up the front axle and restores steering feel.

We fit these at MJ Modifications and the difference is immediate. Customers report more positive feedback through the wheel, reduced tramlining and a more planted front end on B-roads and motorway runs. If your original wishbones or bushes are past their best, this is the ideal upgrade and replacement in one go.

Why choose this SuperPro front arm set

• Aluminium front wishbones for reduced weight and increased rigidity
• Built-in caster gain for improved high-speed stability and stronger self centring
• M-Spec ball joints pre-fitted for durability and precise articulation
• SuperPro poly bushes installed to cut compliance and sharpen response versus OE rubber
• Direct bolt-on replacement – no pressing required
• Excellent for fast road, track day and performance street builds
• Helps reduce vague steering, wandering and uneven tyre wear caused by worn factory arms

What you get

• Left and right aluminium front lower arms
• Pre-installed heavy duty M-Spec ball joints
• SuperPro polyurethane bushes and mounting brackets
• All components required for a complete changeover

Compatibility

BMW 3 Series E46 models excluding M3. Also suits BMW Z4 E85 and E86 non-M. Ideal as a front suspension refresh and upgrade for road or track-focused cars.

Key search terms

BMW E46 front wishbones, E46 lower arm kit, E46 front suspension arms, BMW 3 Series control arm upgrade, E46 polybush wishbone, Z4 E85 control arms, Z4 E86 front lower arms, caster arm kit, aluminium wishbone set, SuperPro ALOY0046XK.

Fitting and alignment

Professional installation recommended. After fitting, a four-wheel alignment is strongly advised to optimise geometry and tyre wear.

Want us to install it for you? MJ Modifications in Warwickshire can help. Request a fitting quote at info@mjmodifications.co.uk.

Note: ALOY0046XK is a complete arm assembly with bushes and ball joints pre-fitted, making it a straightforward upgrade and a quality alternative to stock replacement parts.