BMW M440I Chassis & Suspension

Bilstein EVO T1 Series Coilover Systems

Bilstein EVO T1 Series coilover systems are built and tuned specifically for everyday street use and occasional track duty. Featuring ride height adjustability and manually adjustable performance dampers, their 10-stage damping system adjusts both rebound and compression to provide the best handling performance for both street and track conditions. Bilstein EVO T1 Series coilover systems are the next step in the evolution of performance suspension tuning designed and built in Germany with technology tested and tuned on the Nürburgring. Additional features: * Redesigned threaded bodied dampers allow for extreme lowering of up to 70mm * High-quality components provide consistent performance for every adjustment * Greater stability, traction, and higher cornering speeds are achieved through specific application tuning

Not Yet Reviewed

$2,537.00

SPL Suspension Titanium Series Control Arms

SPL Suspension Titanium Series control arms allow for an increased range of rear camber adjustment, necessary for lowered cars and performance alignments. This provides more stability and predictability to the rear suspension for tighter handling. Using FEA (Finite Element Analysis), the CNC-milled 6061-T6 billet aluminum arms are designed to exceed factory strength and durability. The exclusive Double Adjuster is comprised of electroless nickel plated 4130 chromoly, along with 6061-T6 aluminum rotating clamps to reduce weight and prohibit corrosion, while offering quick and easy adjustment. Blue nodized titanium hardware shaves even more unsprung weight from the arms, without compromising strength. FK spherical bearings and rod ends are manufactured in Connecticut and utilize a PTFE liner to provide quiet operation, lower friction, smooth articulation, and eliminate bushing deflection under load. The liner is also self-lubricating and self-cleaning for robust reliability for street and track use. The PTFE liner is chemically bonded to the inner diameter of the race and offers a very high load-carrying capacity that has greatly increased dynamic wear characteristics. The operating temperature of the liner ranges from -65 to 325 degrees F. Order the pair designed to fit your vehicle.

Not Yet Reviewed

$809.00

SPL Suspension Toe Links and Eccentric Lockouts

SPL Suspension toe links and eccentric lockouts increase stability and response by eliminating bushing deflection—while providing an increased range of rear toe adjustment, necessary for lowered cars or for performance alignments. Even small changes to ride height and camber will affect toe settings; and the wide range of adjustment allows you to maximize grip on a track car and extend tire life on a street car. The factory rear toe arms utilize an eccentric bolt and washer for adjustment and lack the precision and range that SPL rear toe links offer. Black anodized and gun-drilled 2024 aluminum main links, along with a 360 degree rotating clamp design, allow for quick and precise adjustment. The rotating clamps are tightened with blue anodized titanium socket head cap screws for easy-to-access adjustment—shaving even more unsprung weight, without compromising strength. The stock eccentric bolts that allow for small toe adjustments tend to slip under high cornering loads, causing changes to the rear alignment. SPL eccentric lockout kits eliminate the stock eccentric bolts to keep your rear alignment where you set it. The lockout plates are CNC-machined from 6061-T6 billet aluminum and supplied with zinc plated Grade-10.9 hardware for absolutely zero-slip. FK spherical bearings and rod ends are manufactured in Connecticut and utilize a PTFE liner to provide quiet operation, lower friction, smooth articulation, and eliminate bushing deflection under load. This liner is also self-lubricating and self-cleaning, offering robust reliability for street and track use. It's chemically bonded to the inner diameter of the race, and offers a very high load-carrying capacity that has greatly increased dynamic wear characteristics. Operating temperature of the liner ranges from -65 to 325 degrees F for robust reliability. Order the kit designed to fit your vehicle.

Not Yet Reviewed

$449.10

Dinan Strut Tower Braces

Dinan strut and shock tower braces improve handling and the underhood style of your BMW. These attractive brushed aluminum and carbon fiber braces will help to maintain the structural integrity of the towers over the life of your vehicle, as well as provide sharper handling by reducing flex under harder cornering conditions. They may be installed in conjunction with any of the Dinan suspension systems or the stock components. The end brackets are machined for precise fitment over the strut tower reinforcements and powdercoated for a clean and solid installation.

Not Yet Reviewed

$316.95

SPL Suspension Sway Bar End Links

SPL Suspension sway bar end links are perfect for street or race applications. They feature massive PTFE-lined FK 1/2 in. bearings to provide the highest load capacity for use with stiffer aftermarket sway bars and custom heat-treated chromoly high-misalignment studs that connect to the sway bar. They offer extreme articulation capability (65 degrees) to prevent the end link from binding when used with different adjustment holes on aftermarket sway bars. SPL's end links are length adjustable to eliminate preload on the sway bars, which can result from uneven settling of springs or uneven suspension heights from corner weighting. They offer several choices, and many have black anodized 6061 T-6 aluminum turnbuckles that work in conjunction with the left and right hand threaded rod ends for simple and precise adjustment. Choose the SPL end links designed for your vehicle.

Not Yet Reviewed

$224.00

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$224.10

Dorman Sway Bar End Links

Dorman sway bar end links are your solution to a safe, smooth ride. They are built strong and are rigorously tested to provide the best performance at the best price. Replace your rig's worn sway bar end links with components from Dorman--your problem-solving people.

5.0 out of 5 stars ( 4 )

$15.99

Bilstein B6 Performance DampTronic Series Shocks and Struts

Bilstein B6 DampTronic shocks and struts are performance upgrades. They replace your OE dampers and are designed to pair well with the original factory springs. All active features of the factory electronic suspension, along with the factory controls, will be retained with the installation of the B6s. Each is rigorously tested for quality that meets or exceeds OE standards. They feature application-specific valve settings with a monotube design to bring the best performance out of your vehicle. Bilstein B6 Performance DampTronic dampers will deliver improved safety and handling in a package compatible with factory electronic damping control. Order the model designed for your application.

Not Yet Reviewed

$484.00

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$550.00

Beck/Arnley Control Arms

Beck/Arnley control arms are developed to meet the rigorous demands of today's vehicles. Made from quality materials, their control arms are built to exacting specifications to fit your application without any modifications. Broken control arms can make handling your car dangerous. Replace worn control arms with direct fit parts from Beck/Arnley--OE form, fit, and function you can rely on.

4.83 out of 5 stars ( 6 )

$90.99

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$119.99

Beck/Arnley Tie Rod Ends

Beck/Arnley tie rod ends are designed to be OE replacements for your stock units. They feature durable, all-metal construction that is not prone to failure like some OE plastic tie rod ends. Most of Beck/Arnley's selection of tie rod ends are greasable which means friction is reduced, and contaminants are flushed out. Plus, they have an easy-access wrench flat that allows for the use of a socket for easy installation.

3.8 out of 5 stars ( 10 )

$48.99

Summit Bucks

Delphi Steering Tie Rod Ends

Tie rod ends are crucial parts to your steering system, so you need to maintain them with the utmost care. Delphi's replacement steering tie rod ends are manufactured from high-quality material to meet the same standards in fit, performance, and longevity as the original equipment part. They're available in a range of applications to help maintain superb control, resulting in a safe and smooth ride. Order the Delphi parts recommended for your year/make/model for improved steering performance.

4.06 out of 5 stars ( 18 )

$40.99

Dinan Racing Toe Links

Dinan high-performance racing toe links add precision and predictability at the limit. Your stock rear toe link includes rubber bushings and a curved, forged alloy rod designed to flex. During hard acceleration, this flex allows the rear wheels to have excessive toe change causing the car to be unstable. Stop the flex with Dinan's racing toe links! Product features include: * PTFE-coated, machined steel rod ends replace your stock rubber bushings * Straight billet aluminum rod replaces your OEM curved bar, adding stability * Incorporates a hex nut-shaped center, making necessary fine adjustments easier * Highly recommended for use with larger wheels and tires

Not Yet Reviewed

$511.95

Beck/Arnley Stabilizer Bar End Links

Connect your sway bar and suspension with Beck/Arnley stabilizer bar end links. Their stabilizer bar end links meet and exceed OEM quality and will help get your sway bar set up with a sure fit to keep your suspension riding smoothly. If your suspension is making clunking sounds, you may need new sway bar links, and Beck/Arnley offers quality replacements for your ride.

4.2 out of 5 stars ( 20 )

$27.99

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$32.99

Summit Bucks

Delphi Control Arms

Replace worn suspension parts to improve safety and ride comfort. Delphi control arms utilize robotic welding for consistent performance and quality. Build from materials such as steel and cast iron, the arms are available in a variety of styles—including stock, stamped, and forged. Anti-corrosion protection is applied to each part to ensure longevity. Rubber or rubber/steel bushings are included with most models. Order the OE-type replacement specified for your vehicle application.

4.23 out of 5 stars ( 13 )

$60.99

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$66.99