2026 BMW M440i Base Performance Parts

Presenting The Best Sounding Exhausts on the Planet™ for the BMW G20 M340i: At the intersection of sophistication and aggression lies the Touring Edition Exhaust. A dual 3” T304L stainless steel downpipe-back configuration, the AWE Touring Edition Exhaust is the perfect dose of steel...

This 6” tall 360-degree radial flow air filter features a 4-1/2” round flange and our oiled Pro 5R media with five layers of progressively finer cotton gauze media for maximum airflow and performance. This media is best for street and track use. The smooth...

This 6” tall 360-degree radial flow air filter features a 4-1/2” round flange and our oil-free Pro DRY S media with three layers of synthetic media for maximum convenience. Its progressive layering provides great filtration efficiency and dust holding capacity, while not requiring the...

Our SPL Parts Rear Upper Arms (RUA) greatly increase the range of rear camber adjustment for high performance track/street applications and are a must for lowered cars to meet alignment requirements. The adjustment range provided by the eccentric washer on the OEM control arm...

SPL Parts Rear Traction Links (RTR) increase stability and response by eliminating bushing deflection under hard acceleration and braking and help to reduce wheel hop on hard launches. Our length adjustable links allow fine tuning of rear bumpsteer and anti squat characteristics. These arms...

SPL Parts Rear Toe Arms (RTA) 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...

SPL Parts Rear Toe Arms (RTA) for the 2020+ Toyota Supra, and BMW G2X 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...

SPL Parts Rear Endlinks (RE) feature massive 1/2" FK Rod Ends to provide the highest load capacity for use with stock or stiffer aftermarket sway bars. Custom machined High Misalignment Studs offer extreme articulation capability (65deg) to prevent the endlink from binding when used...

The stock eccentric bolts provided by BMW and Toyota for small toe adjustments tend to slip under high cornering loads, causing changes to the rear alignment. Our SPL Parts Eccentric Lockout (ELC) kit eliminate the stock eccentric bolts to keep your rear alignment where...

SPL adjustable front endlinks (FE) for the BMW E8M, E9M, G2X, G42, and G8X chassis feature massive PTFE-lined FK 1/2" bearings to provide the highest load capacity for use with stiffer aftermarket sway bars. Custom heat treated Chromoly High Misalignment Studs connect to the...

Silver Bullet throttle body spacers create turbulence in the air flow at the point just prior entry into the engine increasing horsepower, torque and improving throttle response and fuel efficiency. Silver Bullet throttle body spacers are constructed out of durable T-6061 billet aluminum and...

H&R sport Sway Bars are designed for drivers' who desire improved handling without lowering or affecting ride quality. H&R sport Sway Bars increase your suspension's roll stiffness-or its resistance to roll in turns-while maintaining ride comfort and dramatically increasing cornering control, lateral stability, and...

H&R Sport Sway Bars are designed for drivers who desire improved handling without lowering or affecting ride quality. H&R Sport Sway Bars increase your suspension's roll stiffness or its resistance to roll in turns, while maintaining ride comfort and dramatically increasing cornering control, lateral...

H&R's Street Performance Coil Overs are the perfect suspension solution for discerning drivers - from daily drivers to serious tuners - who can appreciate awesome handling and superb ride comfort. Each coil over shock is custom valved to work in conjunction with a precision-engineered...

H&R Sport Sway Bars are designed for drivers who desire improved handling without lowering or affecting ride quality. H&R Sport Sway Bars increase your suspension's roll stiffness or its resistance to roll in turns, while maintaining ride comfort and dramatically increasing cornering control, lateral...