BMW Suspension Parts for BMW E46 M3 S54 (1999-2005)

The Powerflex Rear Upper Arm Inner Bushing for BMW E36 and E46 3 Series, Z4, and X3 is designed to significantly enhance the performance and reliability of the rear suspension. By replacing the factory rubber bushings with high-quality polyurethane, this upgrade offers a range of benefits for driving enthusiasts.

Key Advantages:

1. Improved Handling and Control: The firmer polyurethane material reduces flex in the upper control arm, resulting in enhanced stability and cornering performance. This leads to a more predictable and confident driving experience.
2. Long-Lasting Durability: Engineered to resist wear from environmental factors such as heat, oil, and road debris, these bushings offer superior longevity compared to traditional rubber options, maintaining performance over time.
3. Enhanced Steering Feedback: The increased rigidity of the bushing allows for better communication between the vehicle and driver, improving steering response and providing a more connected feel on the road.
4. Direct Fit for Easy Installation: Specifically designed for the E36 and E46 3 Series, Z4, and X3 models, these bushings ensure an accurate fit, making installation straightforward without requiring modifications.

Ideal for BMW owners looking to upgrade their suspension system, these bushings provide a perfect blend of performance, durability, and responsiveness, making them suitable for both daily driving and high-performance applications.

Sway bars transmit cornering forces from the outside wheels to the inside wheels, helping to keep the vehicle flat during cornering. This, in turn, reduces body roll and improves the driver's cornering confidence. OEM rubber sway bar bushings are designed with comfort in mind, allowing the sway bar to articulate while permitting additional movement, leading to less-than-ideal bar retention and causes unnecessary body roll.

Powerflex polyurethane sway bar bushings are firmer than factory rubber bushings, reducing body roll and keeping sway bars in check. Polyurethane bushings won't slop around like OEM bushings, allowing sway bars to function at their fullest potential.

Poweflex is a leading manufacturer of aftermarket suspension bushings. Using state of the art design and manufacturing, all replacement bushings are engineered to out-perform and out-last the ones that came in the car. Each line of bushings is meticulously tested and then re-tested to ensure perfect fitment and enduring quality through the life of the vehicle. A full lifetime warranty backs every one of their products and demonstrates the level of confidence and commitment Powerflex has to their customers. 

This Part Fits the Following BMWs:
1986 - 1994 E32 730i 735i 735iL 740i 740iL 750iL
1989 - 1995 E34 525i, 530i, 535i, 540i, M5, Touring
1992-1999 E36 318i 318is 318ti 320i 323i 325i 325is 328i 328is M3
1996 - 2004 E39 Sedan 525i 528i 530i 540i 
1999 - 2001 E46 Convertible 323ci 325ci 330ci
2002-2006 E46 Convertible 325ci 330ci
1998 - 2001 E46 323ci 325ci 330ci M3
2002 - 2006 E46 325ci 330ci
1998 - 2001 E46 Touring 323i 325i
2002 - 2006 E46 Touring 325i 325xi
1998 - 2001 E46 Sedan 320i 323i 325i 328i 330i
2002 - 2006 E46 Sedan 320i 325i 325xi 330i 330xi

For use with 22.5mm CSL rear sway bar, you will need 2 of these.

Genuine BMW Stabilizer Rubber Mounting - D=22,5mm
This item fits the following BMW Chassis:
E86
 

The Powerflex BMW E30 / E36 / E46 / Z3 / Z4 Rear Shock Mount – 10 mm is an advanced suspension upgrade designed to improve the rear shock performance in a wide range of BMW models. By replacing the factory rubber mounts with polyurethane, this mount ensures a more durable and performance-oriented suspension setup.

Key Features:

• Multi-Model Compatibility: Specifically designed for BMW E30, E36, E46, Z3, and Z4 models, this 10 mm rear shock mount is a perfect fit for vehicles with rear shocks that feature a 10 mm rod diameter. It offers seamless integration and performance enhancement across these BMW platforms.
• Polyurethane Construction for Enhanced Durability: Unlike OEM rubber mounts, which are prone to wear and degradation over time, these mounts are crafted from tough polyurethane. This material provides greater resistance to wear, oil, road contaminants, and high temperatures, ensuring a longer-lasting component that maintains its structural integrity.
• Superior Handling and Control: The stiffer polyurethane reduces the flex and movement that can occur with rubber mounts, providing more direct shock performance. This results in better handling, improved suspension response, and increased stability, particularly during aggressive driving or when cornering.
• Comfortable Ride Quality: Despite its firmer characteristics, the polyurethane shock mount is designed to absorb road vibrations and noise, ensuring that while your handling improves, you don’t sacrifice the comfort BMWs are known for. It balances performance and comfort, making it suitable for both daily driving and spirited driving.
• Quick and Easy Installation: Designed as a direct replacement for the stock rear shock mounts, this bushing allows for a straightforward installation process. No additional modifications are required, making it a simple yet effective upgrade for your BMW’s suspension.

This Rear Shock Mount – 10 mm is an ideal upgrade for BMW E30, E36, E46, Z3, and Z4 owners who want to improve their vehicle’s handling performance and suspension durability. The combination of enhanced strength and control with ride comfort makes it an excellent choice for both everyday use and more performance-driven situations, offering a long-lasting solution to rear shock mounting issues.

For the BMW E46 M3, upgrading the rear subframe front bushings is a smart move for both performance enhancement and preventive maintenance. The rear subframe is a critical component in the E46 M3’s suspension system, and using stronger, more durable bushings helps to ensure the car’s longevity and improve its overall handling dynamics.

Features and Benefits of Upgraded Rear Subframe Front Bushings:

• Enhanced Strength and Durability: Upgraded bushings, like those from Powerflex or AKG Motorsport, are made from materials such as polyurethane or even solid aluminum. These materials are much stronger than the stock rubber bushings, which tend to wear out, crack, and degrade over time due to exposure to heat, road grime, and oils.
• Improved Handling Performance: By installing stiffer bushings, the rear subframe's movement is reduced, resulting in a more connected and responsive feel from the chassis. This leads to better handling, sharper cornering, and more precise suspension performance under load, making it ideal for track use or spirited street driving.
• Increased Rear End Stability: With stronger bushings, the subframe stays more securely mounted to the chassis, reducing the flex that can occur during hard acceleration or cornering. This helps to enhance the rear end’s stability, giving drivers more confidence, especially in high-performance driving scenarios.
• Protection Against Subframe Issues: The E46 M3 is notorious for rear subframe issues, where cracks can develop in the subframe mounting points over time. Upgrading the bushings helps distribute forces more evenly, reducing the likelihood of stress fractures and extending the life of the subframe.
• Long-Term Solution: High-quality polyurethane or solid bushings are designed to last much longer than the OEM rubber ones. They provide a long-lasting upgrade that doesn’t degrade quickly, making them a "fit-and-forget" solution for many drivers.

Installation and Considerations:

• Direct OEM Replacement: These upgraded bushings are designed to replace the factory bushings without the need for modification. However, installation can be labor-intensive, as the rear subframe must be dropped to access the bushings.
• Reinforcement Opportunity: Since the E46 M3 is known for subframe cracking, many owners opt to upgrade their bushings in combination with rear subframe reinforcement plates, which are welded to the chassis to prevent cracks from forming. This makes it an ideal time to tackle both issues together.
• Minimal Increase in NVH: Polyurethane bushings are stiffer than rubber but generally do not add a significant amount of noise, vibration, or harshness (NVH). However, solid aluminum bushings, while offering the highest performance, can introduce more NVH, which may not be ideal for daily driving.

Best Applications:

• Performance Upgrades: If you're modifying your E46 M3 for track use, autocross, or performance street driving, upgrading to stiffer rear subframe front bushings is a must for better handling and durability.
• Preventive Maintenance: Even if you're not tracking your car, replacing worn-out bushings with polyurethane or solid bushings can help prevent subframe issues and extend the life of your suspension system.

Sway bars transmit cornering forces from the outside wheels to the inside wheels, helping to keep the vehicle flat during cornering. This, in turn, reduces body roll and improves the driver's cornering confidence. OEM rubber sway bar bushings are designed with comfort in mind, allowing the sway bar to articulate while permitting additional movement, leading to less-than-ideal bar retention and causes unnecessary body roll.

Powerflex polyurethane sway bar bushings are firmer than factory rubber bushings, reducing body roll and keeping sway bars in check. Polyurethane bushings won't slop around like OEM bushings, allowing sway bars to function at their fullest potential.

Poweflex is a leading manufacturer of aftermarket suspension bushings. Using state of the art design and manufacturing, all replacement bushings are engineered to out-perform and out-last the ones that came in the car. Each line of bushings is meticulously tested and then re-tested to ensure perfect fitment and enduring quality through the life of the vehicle. A full lifetime warranty backs every one of their products and demonstrates the level of confidence and commitment Powerflex has to their customers. 

This part fits the following BMWs:
2001 - 2006 E46 M3