BMW Suspension Bushings & Mounts

Worn rubber differential mounts will lead to the differential twisting and shifting around in the rear subframe. Not only will this be noisy but it's bad for driver confidence and bad for the chassis as well. Even on fresh rubber bushings the differential has deflection and twist, especially if the car has been modified for more torque. Since the differential is centrally mounted in the rear subframe, with all suspension mounts interconnected, a differential with too much deflection will affect handling and could even damage the rear subframe.

These 88A urethane E46 M3 diff mounts are much stiffer than stock but still not as solid as our Turner aluminum/Delrin bushings. This set will resist twisting much better than the stock rubber mounts. Included is the front diff mount and two rear mounts in the cover.

For all 2001 to 2005 325xi and 330xi. For convenience, we have assembled this bushing carrier bracket kit, to save you time when changing our control arm bushings. It includes two bushing carriers with pre-installed bushings (one left, one right) and mounting bolts.

 These bushing brackets fit all 2001, 2002, 2003, 2004, and 2005 model BMW 325xi and 330xi.

The BMW E46 / E36 / Z4 / X3 Rear Trailing Arm Front Bushing by Powerflex is a precision-engineered suspension upgrade designed to improve the handling and durability of several popular BMW models. This bushing replaces the factory rubber bushing located at the front of the rear trailing arm with a high-performance polyurethane version.

Product Features:

1. Polyurethane Construction: Unlike standard rubber bushings, Powerflex bushings are made from durable polyurethane, a material known for its superior resistance to wear, heat, and degradation from oils and contaminants. This leads to a longer lifespan and more consistent performance over time.

2. Stiffness for Enhanced Control: The polyurethane bushings provide increased stiffness, reducing unwanted flex and movement in the rear trailing arms. This helps to maintain better control of the rear wheel alignment, resulting in more stable and predictable handling, especially during cornering, acceleration, and braking.

3. Reduced Deflection: By reducing the deflection of the rear trailing arms, these bushings help to improve traction and rear suspension geometry. This makes the car feel more planted and responsive, reducing wheel hop and improving grip under load.

4. Direct Replacement: The Powerflex bushings are designed as a direct replacement for the factory-installed rubber bushings, meaning they will fit perfectly into the existing suspension setup without requiring modifications. This makes installation straightforward while significantly enhancing the suspension’s performance.

5. Longevity & Resistance: Polyurethane bushings are highly resistant to common automotive contaminants such as road debris, oil, water, and heat. This makes them a more reliable choice for drivers looking for a long-term solution to suspension wear and tear.

Compatible Models:

• BMW E46 (3 Series, 1999-2006)
• BMW E36 (3 Series, 1991-1999)
• BMW Z4 (E85/E86, 2003-2008)
• BMW X3 (E83, 2003-2010)

Advantages:

• Improved Rear-End Stability: Provides more precise alignment and control of the rear suspension, resulting in sharper handling.
• Durable & Long-Lasting: Outperforms rubber bushings in terms of longevity and wear resistance.
• Enhanced Ride Quality: Reduces unwanted suspension movement, improving driving dynamics and cornering performance.
• Easy Fitment: A direct replacement for stock bushings, with no special modifications required.

For drivers seeking a more connected and performance-focused feel from their BMW, the Powerflex Rear Trailing Arm Front Bushing is a significant upgrade over stock rubber bushings, delivering improved handling, reduced wear, and enhanced driving enjoyment.

The BMW E39 540, M5 (1996 - 2004) Front Inner Track Control Arm Bushing is a vital component in the suspension system, providing stability and precision to the front control arms. Designed to withstand the rigors of daily driving and performance demands, this bushing helps maintain optimal alignment, handling, and overall ride quality in the high-performance E39 540i and M5 models.

Key Features:

1. High-Quality Material:

   • Constructed from durable rubber or polyurethane, these bushings are designed to endure constant stress, ensuring long-lasting performance under both normal and aggressive driving conditions.

2. Enhanced Suspension Performance:

   • The bushing reduces excessive movement in the control arm, ensuring improved suspension alignment and handling characteristics. This is especially important in performance models like the BMW 540i and M5, where precision handling is critical.

3. Minimized Vibration and Noise:

   • Worn or degraded bushings can allow vibrations to travel through the suspension system into the cabin. New bushings help dampen these vibrations, resulting in a smoother, quieter, and more comfortable driving experience.

4. Improved Steering Response:

   • By reducing flex and movement in the control arm connection, these bushings provide a more direct and responsive steering feel. This is particularly noticeable in cornering and high-speed driving, where handling precision is essential.

5. Direct Fit for Easy Installation:

   • These bushings are designed as direct-fit replacements for the original parts, ensuring easy installation for BMW E39 540i and M5 models. They restore the vehicle to factory performance or better, depending on material choice (rubber vs. polyurethane).

6. Polyurethane Upgrade for Performance Enthusiasts:

   • For those seeking even greater performance, polyurethane bushings offer increased rigidity and longevity over traditional rubber. This upgrade provides sharper handling and reduces bushing flex, making it ideal for track or spirited driving.

Benefits of Upgrading or Replacing:

• Restore Suspension Integrity: Worn-out bushings can cause poor suspension geometry, leading to uneven tire wear and compromised handling. Replacing the bushings restores proper alignment and control.
• Better Ride Quality: Fresh bushings absorb impacts and vibrations more effectively, improving the overall ride comfort, especially in high-mileage vehicles.
• Sharper Handling and Steering: New bushings ensure more precise control arm movement, translating into better steering feedback and cornering performance.

In conclusion, the BMW E39 540, M5 Front Inner Track Control Arm Bushing is a crucial part of the suspension system, responsible for maintaining alignment and handling dynamics. Whether you’re replacing worn bushings or upgrading to polyurethane for enhanced performance, this component ensures that your BMW E39 540i or M5 delivers the precision and comfort it was designed for.

The Powerflex BMW E34 5 Series / E32 7 Series Rear Diff Rear Mount Bushing is designed to enhance the performance and durability of the rear differential mounting system in BMW models. By replacing the factory rubber bushing with high-performance polyurethane, this bushing provides improved handling and longer-lasting reliability.

Key Features:

• Precision Fit for E34 and E32 Models: Engineered specifically for the BMW E34 5 Series and E32 7 Series, this bushing is a direct replacement for the rear differential’s rear mount. It ensures a secure fit, keeping the differential properly aligned for optimal performance.
• Polyurethane Durability: The bushing is made from tough polyurethane, which offers superior resistance to wear and degradation compared to the factory rubber bushings. This material is designed to withstand extreme conditions, such as heat, oil exposure, and road contaminants, ensuring it remains effective for much longer.
• Enhanced Drivetrain Control: Replacing the softer rubber bushing with this firmer polyurethane bushing reduces differential movement under load, resulting in better power transfer and more precise handling. It minimizes drivetrain slop, making the vehicle feel more responsive during acceleration and cornering.
• Improved Handling Performance: By limiting excess movement in the differential, the bushing enhances rear-end stability and helps maintain better control of the vehicle. This leads to sharper, more predictable handling, especially when driving aggressively or under heavy load.
• Maintained Comfort: While this bushing improves performance, it is also designed to retain a degree of ride comfort. The material strikes a balance between firmness for improved handling and flexibility for everyday drivability, making it suitable for both spirited driving and regular use.

This Rear Diff Rear Mount Bushing is perfect for BMW E34 and E32 owners looking to improve their vehicle’s rear suspension dynamics and drivetrain stability. It’s an ideal choice for enthusiasts who want better control and responsiveness without sacrificing too much ride comfort, offering a long-lasting, low-maintenance upgrade for daily driving or performance use.

The ECS Tuning Billet Front Sway Bar Mounting Kit will provide your vehicle with a more rigid mounting solution from the sway bar to chassis than the OEM steel brackets. With an improved sway bar mounting bracket and the included polyurethane sway bar bushings you can expect to achieve an increase in rear sway bar effectiveness and less body roll as a result.

PART DESIGN

The front sway bar mounting brackets are made from a solid piece of 6061-T6 billet aluminum that are precision CNC-machined to bolt into the OEM mounting location while utilizing greaseable, polyurethane bushings. They are Type II black anodized for corrosion protection and include zinc flake coated Class 12.9 alloy steel bolts for premium performance.

The red polyurethane bushings feature a greaseable channel for extended service life and quieter operation than standard polyurethane bushings.

PERFORMANCE FEATURES

Billet & poly mounts replacing the OEM steel & rubber configuration you can expect faster reaction speed and greater effectiveness from your front sway bar due to less deflection. This translates to better handling with sharper, flatter cornering with reduced body roll.

PRODUCT DEVELOPMENT

ECS Billet Front Sway Bar Mounting Kit was designed, engineered, tested and quality inspected by the Research and Development team in our Wadsworth, Ohio facility to ensure the highest level of precision and quality is delivered throughout rigorous long term product testing and leading edge product development methods.

INSTALLATION AND SUPPORT

Installation is simple. Simply unbolt your front sway bar mounting brackets and slip over our poly bushings and billet mounting brackets with the included hardware. That's it! Enjoy better handling and a crisp front suspension.

SPECIAL NOTE: You can use any conventional automotive bearing grease for service.