Suspension and Components› Front Suspension Components

Turner Motorsport

Thrust Arm Monoball Upgrade

$464.99

SKU: 023671TMS01

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Turner Motorsport Thrust Arm Monoball Upgrade is a performance enhancement for select BMW M2, M3, and M4 models. It replaces the stock rubber thrust arm bushings, which can cause a numb, disconnected feel and premature failure. This upgrade offers superior durability and near-instantaneous cornering and braking response.
Show original supplier description
Stock rubber bushings allow for significant fore/aft wheel movement and are fluid-filled for comfort, but this design can lead to a disconnected steering feel, premature failure, and issues like wheel shimmy, delayed response, and poor tire wear. This upgrade utilizes a sealed OEM BMW ball joint for durability, housed within a precision CNC-machined 6061-T6 anodized aluminum assembly. The housing features a knurled outer diameter for a secure press fit and is mated with CNC-machined 304ss components to ensure a precise fit between the ball joint and subframe. This design eliminates unwanted deflection and friction, providing exceptional steering precision, crisp turn-in, and direct braking feedback. The Turner Thrust Arm Monoball Upgrade is maintenance-free and offers long-lasting performance. It's suitable for track cars and enthusiasts who enjoy spirited driving, offering improved road feel without undesirable NVH (Noise, Vibration, Harshness). Fitment includes BMW M2 (2016-2018 Base, 2020 CS, 2019-2021 Competition), M3 (2015-2018 Base Sedan), and M4 (2015-2020 Base Convertible and Coupe, 2019-2020 CS, 2016 GTS Coupe).

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandTurner Motorsport
Part Number023671TMS01
CategorySuspension and Components

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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