SPL Parts FKS Series Front Spherical Caster Rod Bushing Set

2013–2015 BMW 335i (F30) 3.0L Turbocharged Inline-Six

Part #: SPL CRBN F3IX

Overview

The SPL Parts FKS Series Front Spherical Caster Rod Bushing Set is designed to enhance the handling and steering response of your BMW 335i (F30) from 2013 to 2015. Engineered for enthusiasts who seek precise suspension performance, these bushings replace the factory rubber components with high-performance spherical bearings that eliminate bushing deflection under load. This upgrade results in more direct steering feedback, improved cornering stability, and better braking feel, making it ideal for spirited driving, track days, or aggressive street use.

By replacing the stock flexible bushings with low-friction, articulating spherical bearings, you'll experience a more responsive suspension system that maintains optimal geometry even during hard cornering. The result is a more predictable and confident driving experience, whether you're pushing your vehicle on twisty roads or at the race track. The durable construction ensures long-lasting performance, giving you peace of mind for both daily driving and high-performance applications.

Key Features

The SPL Parts FKS Series Bushings incorporate advanced materials and design features to deliver superior performance and durability:

• High-Quality FK Racing Bearings: Massive 1" sized FK Racing Bearings with self-lubricating Teflon liners provide low friction articulation, reducing binding and allowing for smooth movement under load.
• Premium Materials: Constructed from 6061-T6 aluminum, these bushings are lightweight yet highly resistant to corrosion and fatigue, ensuring longevity and reliable performance.
• Optimized Suspension Geometry: The spherical design eliminates bushing deflection, maintaining consistent suspension alignment during aggressive driving or heavy loads.
• Enhanced Handling & Feedback: By reducing compliance in the caster rods, the set improves steering precision, turn-in response, and overall vehicle stability.
• Direct Fitment: Designed specifically for the 2013-2015 BMW 335i (F30), ensuring a straightforward installation without modifications.
• Durability & Reliability: The self-lubricating Teflon liners and robust aluminum housings are built to withstand the rigors of high-performance driving.

Construction & Design

The SPL Parts FKS Series Bushings feature a precision-machined 6061-T6 aluminum housing that houses the massive FK Racing spherical bearings. The spherical bearings are designed to articulate freely, providing a significant upgrade over the stock rubber bushings that tend to flex and degrade over time. The use of high-grade materials ensures that these bushings can handle the stresses of spirited driving and track use without compromising performance or durability. The lightweight aluminum construction not only reduces unsprung weight but also aids in heat dissipation, maintaining optimal performance during demanding driving conditions.

Installation & Fitment

The SPL Parts FKS Series Bushings are designed as a direct bolt-on upgrade for the front caster rods on the 2013-2015 BMW 335i (F30). Installation is straightforward for those with basic mechanical skills, and no modifications to the vehicle are required. The set includes all necessary hardware for a secure and precise fit. As with any suspension component upgrade, it is recommended to have the alignment checked and adjusted after installation to ensure optimal handling and tire wear. No cutting, drilling, or tuning is necessary.

What's Included

• Front caster rod bushing set with spherical bearings
• 6061-T6 aluminum housings
• All necessary mounting hardware and fasteners
• Installation instructions

Ideal For

• BMW 335i (F30) owners seeking improved handling and steering response
• Performance enthusiasts and track day participants
• Drivers looking to eliminate bushing deflection for more precise suspension control
• Anyone wanting a durable, long-lasting suspension upgrade