Doorbusters Control Arm Refresh Kits for BMW 3 Series E90 (2006-2011)

Upgrade your E9X BMW with this all-in-one Turner Motorsport bundle featuring Fixed Camber Plates and Monoball Front Thrust Arms. Designed to improve handling, reduce deflection, and increase steering precision, this package delivers a noticeable performance boost both on the street and track—all without breaking the bank.

E9X Front Camber Plates – Fixed Position

Most BMWs leave the factory with conservative front camber to encourage understeer, which compromises handling and accelerates tire wear by reducing contact patch engagement. Turner Motorsport’s Fixed Camber Plates are a simple, effective solution, adding up to 2.5° of negative camber to your E90, E92, or E93.

By increasing front negative camber, you’ll enjoy:

Improved turn-in and cornering confidence

Reduced tire wear

Better overall handling balance

Designed with expertise gained from Turner Motorsport’s participation in the Speed World Challenge series, these plates are offset for the optimal camber/caster combination when running stock-diameter springs. They add only ~6mm of ride height and utilize the factory upper strut mount for a clean, straightforward installation—perfect for racing classes where adjustable camber plates are restricted, or for enthusiasts who want a simple, cost-effective negative camber upgrade.

Installation: Press out OEM studs and alignment pin; see Turner’s detailed PDF for guidance.

Monoball Front Thrust Arm Upgrade Kit

BMW’s stock front thrust arm bushings are soft, compliant, and prone to wear—allowing fore/aft wheel movement that degrades steering feel, alignment, braking response, and tire performance. While designed for comfort, these OEM components fall short for enthusiasts and track-focused drivers seeking maximum control.

Turner Motorsport’s Monoball Front Thrust Arms solve these issues with:

Sealed OEM BMW ball joints for exceptional durability

CNC-machined 6061-T6 anodized aluminum bearing assembly with knurled OD for perfect press-fit and long life

Low-friction, no-bind design to eliminate unwanted suspension deflection

The result? Instantaneous turn-in, precise steering, direct braking feedback, and exceptional suspension feel, all while maintaining comfort and reliability for daily driving. Perfect for track use or spirited street driving, these thrust arms are a no-compromise upgrade for anyone looking to enhance BMW front-end performance.