BMW Suspension Parts for BMW Z4 M Roadster S54 (2003-2008)

Looking for coilovers that will provide reliability on street driven vehicles but are also capable of feeding your weekend track demon's desire for performance? BC Racing's BR Series coilover kit may be just the thing for you.

BR Series coilovers are the most popular and versatile option offered by BC racing, offering features such as 30-level dampening adjustment (simultaneous compression and rebound control), linear springs where possible, and a minimum of 2 inches ride height drop. To ensure performance, comfort, and quality, all BR Series kits are Dyno tested during the design stage to determine the best valving and spring rates, then installed and tested for a minimum of 6 months. This kit features mounts and brackets that are fully compatible with all stock mounting points and components.

The upper shock/strut mounts are all constructed of 6061-T6 Aluminum for strength and weight savings. BC Racing design 1 of 3 types of upper mounts for each vehicle: Caster/Camber Plates (+/- 3* camber), Camber Plates (+/- 3* camber), and Rubber Mount Plates (NVH reduction). The included mount option for this kit is shown in the kit specs and features below.

Lower shock mounts are powder coated for corrosion protection and constructed of either 6061-T6 aluminum that has been milled from a single piece (fork or bolt eye mount) or of STKM13C steel with all brackets welded robotically.

The included springs come in one of 3 styles: linear, S-barrel, and V-barrel. Linear springs are used in most applications unless limited by the OE design that does not allow the use of linear springs. All spring options are made from SAE9254 steel and have a zinc coating applied under the powder coating for increased spring corrosion protection and long term reliability.

All shock bodies used in the BR Series coilovers use a 53mm shock body (unless noted otherwise) for added strength, performance, and increased fluid capacity. All shocks are then powder coated black chrome for clean styling and corrosion protection.

Specs and Features:

• 6k Front & 8k Rear Spring Rate
• Linear front & S-Barrel rear springs
• Valved specifically to spring style and rate
• Camber Plate Front Mounts
• Aluminum and Rubber Rear Mounts
• Black Powder Coated Components
• All OE style brackets and mounting for perfect fit
• 30 Levels of Simultaneous Compression and Rebound Dampening
• 2 inch minimum and 3+ Inches of total potential drop
• Great for Track, Street, and any other conditions

URO Strut Bellow Kit - E46 E60

URO Strut Bellow Kit - E46 E60 is designed to replace old, cracked, or torn strut bellows in your BMW, ensuring that your suspension components remain well-protected. This high-quality kit helps prevent moisture and debris from entering and damaging the shock absorbers, improving the overall longevity of the suspension system. The strut bellows are molded to OE dimensions and shape for a seamless fit, ensuring easy installation and maintaining the vehicle's original appearance.

• Replaces cracked or torn strut bellows for improved suspension protection
• Prevents moisture and debris from damaging shock absorbers
• Molded to OE dimensions for easy installation and original appearance
• Helps maintain suspension performance and durability
• Comes with a 24-month unlimited mileage warranty

The subframe is integral to supporting and stabilizing crucial components such as control arms, engines, and transmissions. Bushings located at the junctions between the subframe and the vehicle's body play a vital role. These bushings act to dampen vibrations, ensuring a smoother ride by preventing excessive vibrations from reaching the cabin. They also contribute significantly to maintaining the subframe's stability, thereby keeping all components securely in position.

If you notice increased cabin vibrations or hear unusual sounds like clunks or knocks when driving over bumps, worn-out subframe bushings could be the issue. Replacing them with new bushings not only reduces vibrations but also improves overall stability and performance. This upgrade provides a secure mounting point for critical components like lower control arms, engines, and transmissions, enhancing your vehicle's ride quality and functionality.

URO Parts offers more than 8,000 high-quality spare parts, many of which are specifically designed to replace factory BMW components. Their business was founded on the premise of producing parts that adhere to the highest standards of precision, materials, and workmanship. Each part is closely evaluated by a team of industry professionals to determine how to offer the best blend of durability, function, and price. If you're looking for quality replacement components at a reasonable price, look no further than URO Parts.