BMW Control Arm Replacements & Upgrades

These bushings replace the stock rubber bushings and offer a better driving feel, increased lifespan, and better wheel alignment.

Rubber bushing allow for a lot more movement and are more susceptible to wear and tear from spirited driving and harsh weather conditions. Polyurethane is much more resistant to wear and is stiffer, reducing the total amount of movement that would normally affect the alignment negatively.

The SPL BMW F2X/F3X Front Lower Control Arms (FLCA) provide roll center, camber, and track width adjustment for the rear wheel drive (RWD) F2X/F3X BMWs while eliminating bushing deflection resulting in sharpened steering response and driving precision.

Negative Camber Benefits

The ability to run more negative camber greatly improves the peak lateral grip available. Adding negative camber results in the tire having an optimal contact patch as the body rolls due to cornering forces. This is especially important with better tires and a must-have for anyone looking to prevent excessive outer shoulder wear (and heating) on their tires due to a lack of camber.

Wider Front Track Width Benefits

Further handling improvements can be had by increasing the front track width from the factory 60.5" (F3X) or 59.9" (F2X) to be closer to the M3's 62.2". If you applied the M3's width to the M340i it would reduce the outer front tire loading by roughly 20 lbs and apply it to the inner front tire. The result would be greater peak grip (~0.04G), improved stability, and faster lap times.

Roll Center Correction Benefits

Lowering the F2X/F3X results in a greater distance between the front roll center and the center of gravity. This acts like a longer lever, creating more body roll, bumpsteer, and requiring additional static camber angle to maintain the same handling. The SPL front lower control arms allow the roll center to be corrected for a wide range of ride heights to improve handling and stability.

The lower control arms come with a ride height sensor bracket to maintain the factory ride height sensor location, regardless of length of the arm to keep those finicky BMW chassis electronics happy.

Benefits

Adjustable Camber, Roll Center, and Track Width

Eliminates Bushing Deflection

Improved Tire Life with Ideal Camber Settings

Lightweight, High-Strength Construction

Stackable 304SS Roll Center Spacers in 1/8" and 1/4" Sizes

US Made, PTFE Lined FK Rod Ends 

Materials

6061-T6 aluminum black anodized arm, clamps, and spacers

4130 CrMo electroless nickel-plated double adjuster

Ti6Al4V titanium socket head cap screws

304 stainless steel roll center and knuckle spacers

5/8" 4140 CrMo stud

FK PTFE-lined spherical bearings (F1 spec, self-cleaning)

Suitable for all uses, from daily driver to race car.

For BMW E30, Z3, E21, and 2002 models, upgrading to adjustable rear trailing arm bushings from manufacturers like Powerflex offers both improved performance and the ability to fine-tune suspension alignment. These bushings are designed to replace the factory rubber bushings, which can degrade over time and lead to imprecise handling.

Key Features and Benefits:

• Adjustable Alignment: These adjustable rear trailing arm bushings allow you to modify rear toe and camber settings. This is crucial for fine-tuning the suspension for different driving styles, especially if the car is used in motorsport applications like track days or autocross, or if the car has been lowered and needs suspension corrections.
• Superior Handling: By significantly reducing the play in the rear trailing arms, these bushings improve the car’s handling dynamics. They keep the rear suspension more rigid during acceleration, braking, and cornering, resulting in sharper, more predictable handling.
• Polyurethane Durability: Unlike the OEM rubber bushings, which wear out over time due to heat, road grime, and chemicals, these adjustable bushings are made of durable polyurethane. This material resists aging, cracking, and wear, ensuring consistent performance over a longer period.
• Reduced Deflection: Adjustable polyurethane bushings limit suspension deflection, allowing the vehicle to maintain optimal suspension geometry under load. This improves cornering performance and reduces body roll.
• Longer Service Life: Polyurethane bushings are known for their longevity compared to rubber bushings, offering a "fit and forget" solution for car owners who want reduced maintenance and better overall reliability.

Installation and Adjustment:

• Direct Fit Replacement: These bushings are designed as a direct replacement for the stock rubber bushings, offering the same fitment while adding adjustability. No major modifications are typically required, making installation easier for those familiar with suspension work.
• Alignment Precision: Once installed, these bushings allow precise adjustments to the suspension alignment, which is ideal for correcting issues that arise from modifications like lowering the vehicle or installing performance suspension components.

Ideal for:

• BMW E30 (3 Series)
• BMW Z3
• BMW E21 (3 Series)
• BMW 2002

These adjustable rear trailing arm bushings are perfect for enthusiasts looking for more control over their vehicle’s alignment and handling, whether for street driving or performance applications. They offer a great balance of increased performance, durability, and adjustability without sacrificing daily driving comfort.

Megan Racing offers Adjustable Rear Lower Control Arms designed specifically for 2002+ MINI models, including the One, Cooper, Cooper S, Clubman, and Countryman. These control arms are constructed from a lightweight yet durable steel alloy and feature a striking blue-metallic finish thanks to a meticulous 3-stage powder coating process. They include a turn-buckle style adjustment mechanism for easy tuning and anti-dust pillow ball ends for a more direct driving feel without sacrificing comfort.

• Lightweight and Durable: Made from steel alloy, ensuring a strong yet light component.
• Anti-Dust Pillow Ball Ends: Provides a direct driving feel with improved durability.
• Customizable Finish: Blue-metallic powder coat with a 3-stage process for enhanced appearance and protection.
• Easy Adjustment: Turn-buckle style center adjustment for straightforward camber or toe modifications.
• Versatile Fitment: Can be used to adjust either camber or toe, with the option to use two sets for complete rear suspension tuning.
• 1-Year Warranty: Manufacturer's warranty against defects for peace of mind.

Applications:

• Fits 2002+ MINI models including R50, R52, R53, R55, R56, R57, R58, R59, R60, and R61.

The Powerflex Rear Lower Arm Rear Bushing for the BMW E60 5 Series, E63 6 Series, E53 X5, and E39 5 Series, designed for a 14mm fitting, is a performance-oriented upgrade that enhances the functionality of the rear suspension system. By replacing the stock rubber bushings with high-quality polyurethane, this bushing offers multiple advantages for improved handling and stability.

Key Benefits:

1. Improved Handling Dynamics: The firmer polyurethane construction reduces flex and unwanted movement in the rear lower arm, resulting in enhanced cornering stability and overall handling. This upgrade helps drivers feel more in control during aggressive driving and tight turns.

2. Superior Durability: Unlike traditional rubber bushings that can wear out and degrade over time, Powerflex bushings are designed to withstand harsh conditions. They resist damage from oil, heat, and road debris, ensuring consistent performance and longevity.

3. Enhanced Steering Feedback: By minimizing unwanted movement within the rear suspension, these bushings provide better road feedback and improved steering response. This results in a more connected and engaging driving experience, allowing drivers to feel more attuned to their vehicle.

4. Easy Installation: Specifically designed for the E60, E63, E53, and E39 models, these bushings are a direct fit into the existing suspension components. The installation process is straightforward, requiring no modifications and making it an ideal upgrade for DIY enthusiasts.

5. Versatile Performance: Whether for daily driving or performance-oriented applications, these bushings help optimize the rear suspension geometry, enhancing tire contact with the road and improving handling capabilities in various driving conditions.

This upgrade is ideal for BMW owners looking to enhance their vehicle's rear suspension performance. The Powerflex Rear Lower Arm Rear Bushing for the 14mm fitting is a reliable solution for improving handling, stability, and overall driving enjoyment, making it suitable for both everyday use and spirited driving scenarios.

Over time, road conditions can significantly impact your vehicle's suspension system. Factors like potholes, speed bumps, and other road hazards contribute to wear and tear, resulting in a less responsive and weaker suspension. Enhance your driving experience by regularly replacing worn components to improve safety and ride comfort.

When replacing parts in your front or rear suspension, it's advisable to change them in pairs (both left and right sides) or focus on inspecting components prone to failure. This approach maximizes the longevity of replacement parts and ensures optimal performance across the suspension system.

Bushings tends to wear over time and split or even break free from the internal sleeve, causing excessive movement and sloppy control feel. OEM Lemförder bushings are the perfect option to restore suspension back to day 1 quality.

OEM Lemförder is an engineering company that focuses on high-quality, precision manufacturing of critical suspension and steering components. Providing exceptionally high quality parts directly to BMW, as well as 50+ other big name automotive companies, such as Mercedes and Audi, their history of reliability and variety of offered parts makes them one of the biggest names for a go-to OEM parts provider. Lemförder parts place an important emphasis on design, production, and assembly, ensuring maximum reliability. They even coat all parts possible with corrosion protection for extended longevity.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

This item fits the following BMWs:
2000-2006 E53 BMW X5 3.0i X5 4.4i X5 4.6is X5 4.8is