SuperPro Alloy Front Lower Control Arms & Wishbone Kit, Caster Correction, Polyurethane Bushes, HD Ball Joints – BMW Z4 E85/E86 & 3 Series E46 Fast Road/Track Upgrade – ALOY0046XK

SuperPro Front Wishbone Assembly with Added Caster for BMW Z4 E85/E86 and BMW 3 Series E46

Part number: ALOY0046XK

Transform the front end of your BMW with this premium SuperPro wishbone package. Engineered for drivers who want sharper steering, greater stability and confident road feel, this front arm upgrade adds valuable caster for a more planted, self centring steering response on fast road and track. Ideal for refreshing a tired front axle or building a performance setup that delivers consistent geometry under load.

We use this kit on our own cars and customer builds, and the feedback has been outstanding: crisper turn in, improved straight line tracking and a more connected drive.

What you get

• Left and right lightweight aluminium front arms
• Heavy duty M-Spec ball joints pre-fitted
• Mounting brackets
• SuperPro polyurethane bushes installed

Why choose this upgrade

• Additional caster for enhanced steering feel and high speed stability
• Poly bushes control unwanted movement compared with factory rubber, keeping alignment true
• Aluminium construction helps reduce unsprung mass for a more responsive front end
• Direct replacement assembly for a hassle free changeover
• Ideal for fast road, track day, autocross and performance street builds

Fitment

Designed for BMW Z4 E85/E86 and BMW 3 Series E46 platforms. A great choice when replacing worn original wishbones or when upgrading the front suspension for performance driving.

Installation and setup

Professional fitting recommended. We offer supply and installation at MJ Modifications in Warwickshire. For a tailored fitting quote, email info@mjmodifications.co.uk.

Wheel alignment is recommended after installation to maximise tyre contact, steering precision and handling balance.

Search friendly terms

BMW Z4 E85 front wishbones, Z4 E86 front arms, BMW E46 front arm kit, BMW front suspension upgrade, caster correction kit, polyurethane bush upgrade, alloy wishbone set, performance front control arm assembly, fast road suspension, track day suspension parts.

Choose SuperPro for dependable quality, precise geometry and a genuine step up in driving confidence. Order ALOY0046XK today for your BMW Z4 E85/E86 or BMW E46.