Trailing arm bushings play a key role in connecting the wheels to the chassis of the vehicle. Tasked with keeping suspension geometry in check while absorbing noise, vibration, and harshness (NVH) factory rubber bushings were engineered to provide a balance of comfort and control. As a factory bushing ages, it becomes brittle and begins to harden. When this happens the bushing will actually shrink and allow excess play in the suspension joint. This is typically felt by a sudden jerk forward after the car comes to a stop and is a leading cause of "sloppy" or "loose" suspension feel. By replacing the bushing with a full polyurethane unit or using a bushing insert, this play is eliminated since the suspension joint is being supported by a much stiffer material that will not harden or shrink over time. Additionally, the inherent stiffness of the urethane material translates body forces much more directly. This means steering inputs from the driver are effectively transferred to the wheels and vital road information is transmitted properly from the wheels to the driver.

Powerflex Black Series bushings are the ultimate in track and race bushings. Featuring 95A durometer polyurethane, Black Series bushings are 25% stiffer than street bushings. Engineered to perform, Powerflex performance polyurethane control arm bushings offer a supreme level of control, while still providing enough comfort for the street, with advanced polyurethane that reduces NVH that often accompanies lesser bushings. Expect improved steering feel, turn in, more responsive handling and overall improved chassis composure with Powerflex performance polyurethane control arm bushings.

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. 

The Bilstein B8 Performance Plus Kit includes two front struts and two rear shocks. These shocks are for use with lowered springs such as from H&R or Eibach. We do not recommend that you use them with any factory spring, including factory sport package springs. With the increased damping rates from stock you will have much more control over body motions. These will give a much more buttoned down and taut feeling with lowering springs compared to stock shocks.

These shocks fit the following BMWs:

1976-1983 E21 320i

Suspension Techniques Thicker Sway Bars

Enhance your BMW's cornering performance with Suspension Techniques' thicker sway bars. Designed to reduce body roll and keep your wheels firmly planted on the pavement, these sway bars allow for more aggressive cornering without sacrificing ride quality. With all necessary hardware and instructions included, upgrading your suspension is made easy.

• Improve cornering performance
• Reduce body roll
• Maintain ride quality
• Keep wheels firmly planted
• Includes all necessary hardware and instructions

Air Lift Viair 444C Dual Pack Compressor - 200 PSI - Chrome offers a significant upgrade for BMW air suspension systems, delivering superior performance and reliability. Engineered by Turner Motorsport, these compressors are designed to enhance efficiency and durability.

• Newly-Developed Intercooler Head: Improves compressor efficiency and performance.
• Stainless Steel Braided Leader Hoses: Includes inline check valve assembly for enhanced protection against high amperage restarts.
• Chrome Finish: Provides increased durability and a sleek, aesthetic appeal.
• Complete Kit: Includes air filter assemblies, remote mount brackets, fittings, spare air filter elements, nuts, bolts, washers, lock washers, and airline clips.
• Easy Installation: Compatible with various air suspension setups for a hassle-free upgrade.

Upgrade your BMW's air suspension system with the Air Lift Viair 444C Dual Pack Compressor for top-tier performance and durability.

Upgrade your BMW's air suspension system with the 444C Dual Pack Compressors from Turner Motorsport. These compressors feature a newly-developed intercooler head and stainless steel braided leader hose for enhanced durability and performance. Ensure reliable air supply for your BMW's suspension system with this comprehensive kit.

• Newly-developed intercooler head for improved performance
• Stainless steel braided leader hose with inline check valve for compressor protection
• Complete kit includes all necessary components for installation
• Enhances durability and reliability of your BMW's air suspension system

Kit Features:

• (2) 444C Black Compressors
• Patents Pending Intercooler Head
• (2) Air Filter Assemblies
• (2) Remote Mount Brackets
• (2) Sets of Remote Mount Fittings
• (2) Sets of Spare Air Filter Elements
• (8) Sets of Nuts, Bolts, Washers and Lock Washers
• (2) Stainless Steel Braided Leader Hoses with Inline Check Valve
• (6) Airline Clips

*Does not include relays, pressure switch or air line for remote air filter relocation

The Powerflex Black Series Front Sway Bar Bushing (22 mm) for the BMW E21 is a high-performance suspension upgrade designed for enthusiasts seeking maximum handling precision and durability. Made from Powerflex’s toughest polyurethane compound, these bushings are ideal for motorsport and track use, providing significantly reduced deflection compared to stock rubber bushings.

Key Features:

• 22 mm Fit: Perfectly designed for E21 models with a 22 mm front sway bar, ensuring a snug and effective fit.
• Track-Ready Performance: The Black Series is engineered for extreme conditions, delivering enhanced stability, sharper handling, and reduced body roll during hard cornering.
• Durable Polyurethane: With superior wear resistance, these bushings outlast traditional rubber, maintaining performance even under intense stress.

Whether you're pushing your BMW E21 on the track or just looking to sharpen its handling for spirited driving, these Powerflex Black Series bushings offer the performance, durability, and precision needed to get the most out of your suspension setup.