SPL Adjustable Front Caster Rod Monoball Bushings - E9X M3 | F8X M2/M3/M4
SPL Adjustable Front Caster Rod Monoball Bushings - E9X M3 | F8X M2/M3/M4
SPL Adjustable Front Caster Rod Monoball Bushings - E9X M3 | F8X M2/M3/M4
/ PRODUCT ·SUSPENSION

SPL Adjustable Front Caster Rod Monoball Bushings

4.8 163 ratings
[ VERIFIED FITMENT ]
E9X M3F8X M2/M3/M4
$660.00
/
Shipping calculated at checkout.
  • Shipped from USA
/ 0.5 · PAIR WITH

Additions
/ 01 · OVERVIEW

Sharpen your front end with SPL Parts Front Caster Rod Monoball Bushings. The factory caster rod uses soft rubber bushings that flex under braking and cornering loads, letting the front geometry move around and blunting feedback right when you need it. These monoball bushings swap that rubber for low friction spherical bearings, so the suspension holds its position under load and the car talks to you through the wheel and the brake pedal.

Built around massive 1 inch FK racing bearings with self lubricating Teflon liners for durability and smooth articulation, they also add adjustment the factory setup does not have. CNC machined offset bearing spacers let you add caster for sharper turn in and better high speed stability, or set it back to spec.

Housed in 6061-T6 aluminum, made in the USA, and sold as a pair. These press into your factory caster rods, so the OEM arms are not included. Note that they do not fit xDrive or AWD models.

FITMENT

- E82 / E87 / E88 1 Series and 1M (2008-2013)

- E90 / E91 / E92 / E93 3 Series and M3 (2006-2013)

- F80 M3 (2014-2021)

- F82 / F83 M4 (2014-2020)

  • F87 M2 (2016-2021)
/03·SHIPPING
Ships in 1-3 Days
Flat Rate Shipping
Fully Insured

Processing: In-stock items typically ship within 1–3 business days. We do our best to get every order out as quickly as possible. All orders are quality-checked and ship with full insurance coverage. If an item is out of stock, we'll reach out ASAP with an ETA.

Carriers: Carbon fiber and performance parts ship via UPS. Smaller items ship via USPS.

Tracking: You'll receive a confirmation email when your order ships with a tracking link — you can also track it anytime from the order page linked in that email. Allow 1–3 business days for tracking to update.

International: We ship worldwide. Contact us at sales@horizonmotorsport.com for international shipping quotes.

Signature: We may require a signature for high-value orders. Please be available during your estimated delivery window.

/ 04 · CUSTOMER BUILDS

Built by Our Customers

Customer-built. Running HM parts.
FEATURED BUILD
G80 M3 Competition
OWNER

AP2 Performance

Orange County, CA
SPEC SHEET
VR1 FRONT GRILLSP2 FRONT LIPPERFORMANCE V1 SIDE SKIRTSPERFORMANCE V1 DIFFUSERPERFORMANCE V1 INLETS
@ap2.performance
F80 M3
OWNER

Brian

Los Angeles, CA
SPEC SHEET
CS V2 FRONT LIPPERFORMANCE V1 SIDE SKIRTSV STYLE DIFFUSERPERFORMANCE V2 MIRROR CAPSGTS STYLE HOOD
@bbriaann_
A90 Supra
OWNER

Danny

Orange County, CA
SPEC SHEET
AG1 FRONT LIPAG1 SIDE SKIRTSAG1 REAR SPATS
OWNER

Brandon

Irvine, CA
SPEC SHEET
VR1 FRONT LIPCSL V1 FRONT GRILLPERFORMANCE V1 INLETSPERFORMANCE V1 MIRROR CAPSHM S58 CATBACK EXHAUST

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Horizon Motorsport - Est. 2019

Built for BMW Enthusiasts

We specialize in quality aftermarket parts for BMW M-cars. Every part we carry is selected, inspected, and shipped with the same care you'd give your own build. Our goal: help you get your car looking and performing exactly how you envisioned it.

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/ ? · ASK A QUESTION

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Fitment uncertainty, install details, compatibility with other mods — whatever it is, our team replies personally, usually within 24 hours.

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