Powerflex BMW Control Arm Replacements & Upgrades for BMW E30 M3 S14 2.3L

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Control arms, and their integrated ball joints, are some of the most crucial components on a BMW suspension. The control arms literally control the wheel and suspension as they go through their range of motions. They do more than just keep the alignment in a constant spec - they are a vital locating component for the suspension itself. A faulty or worn control arm or ball joint is a very dangerous and potentially life-threatening problem so make sure they are inspected and replaced at regular intervals.

Most control arms for BMWs consist of an inner and outer ball joint made of plastic, rubber, Delrin, or metal and covered in grease with a rubber boot to seal it from the outside. The ball joint rotates and spins as the control arm goes through its movements and that will wear the ball joint and make it loose. The grease inside the housing can also get used up, evaporate, or become contaminated from moisture and foreign particles. As the ball joint becomes worn it can result in excess movement within the housing. Your steering and handling will become less precise and there is usually a light clunking or clicking sound. In rare and extreme cases the ball joint can separate from the control arm completely, leading to a total loss of suspension and steering control. You should have the ball joint play checked annually and replace them every 3-4 years. Most track organizations will not allow a car if they are older than three years.

Control arms also take abuse from impacts and handling forces. Aluminum control arms will generally bend and prevent an accurate alignment. Steel control arms will crack and fracture and require close inspection annually and replacement every 3-4 years.

We sell OE BMW, OEM, and performance upgrade control arms from proven manufacturers. The control arm is so important to a BMW suspension that we insist on only top quality brands and designs and will never sell a control arm based on price alone. We also have upgrade packages with superior designs and better bushing options and we have bundled these together with valuable package savings.

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Powerflex Adjustable Rear Trailing Arm Bushing - E10, E21, E30, Z3 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Powerflex - Corporate Logo
T#:34147735
Part#: PFR5-306GH
Back Ordered
$ 247.99 USD
Free Shipping on orders $49 and up

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.

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Powerflex BMW E30 - Z3 - E21 - E36/5 - 2002 Rear Trailing Arm Bushing...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Powerflex - Corporate Logo
T#:34080757
Part#: PFR5-306H
Ships in 1 Business Day
$ 179.99 USD
Free Shipping on orders $49 and up

The Powerflex Rear Trailing Arm Bushing for BMW E30, Z3, E21, E36/5 (318ti), and 2002 models is a high-performance suspension upgrade designed to replace the stock rubber bushings. Made from durable polyurethane, this bushing enhances the connection between the trailing arm and chassis, resulting in better handling and improved suspension control.

Key Features:

  • Material: Made from high-quality polyurethane, which offers superior durability and resistance to wear compared to standard rubber bushings.
  • Performance Improvement: Minimizes flex and movement in the rear trailing arms, leading to better suspension alignment, increased stability, and more precise handling, especially during cornering and hard acceleration.
  • Direct Replacement: This bushing is a direct-fit replacement for the factory bushings in BMW E30, Z3, E21, E36/5, and 2002 models, ensuring easy installation without modifications.
  • Longevity: Polyurethane bushings last longer than rubber, offering extended service life, especially in demanding driving conditions.

Benefits:

  • Enhanced Stability: Reduces excessive movement in the rear suspension, providing improved cornering performance and reducing body roll.
  • Increased Durability: Polyurethane resists wear from heat, oils, and road debris, ensuring longer-lasting performance compared to rubber bushings.
  • Better Control: Firmer suspension response improves driving precision, making this an excellent choice for both street and track use.

The Powerflex Rear Trailing Arm Bushing is perfect for BMW enthusiasts who want to improve the performance, handling, and longevity of their car’s suspension. Ideal for both daily driving and performance-focused builds.

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Powerflex BMW E36 - E30 - Z3 - Z1 Front Lower Control Arm Rear Bushin...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Powerflex - Corporate Logo
T#:34181268
Part#: PFF5-303H
Ships in 1 Business Day
$ 90.99 USD
Free Shipping on orders $49 and up


The Powerflex [PFF5-303H] Front Lower Control Arm Rear Bushing Eccentric (Heritage) is designed for BMW E36, E30, Z3, and Z1 models.

  • Heritage Style: Retro look with modern polyurethane for durability.
  • Eccentric Design: Adjusts suspension geometry, increasing caster for better handling.
  • Improved Performance: Reduces play in the control arms, enhancing steering precision and stability.
  • Durable: Resistant to wear and road contaminants, lasting longer than rubber.

Ideal for keeping the classic look of your BMW while improving handling and longevity.

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