2018 BMW X4 M40i Performance Parts

Brembo brake pads reflect the brand?s racing heritage and engineering excellence, delivering the ideal balance of performance, safety, and comfort for every driving style. Designed with carefully selected friction materials, they provide reliable braking across a wide variety of vehicles, from daily commuters to...

Brembo brake pads reflect the brand?s racing heritage and engineering excellence, delivering the ideal balance of performance, safety, and comfort for every driving style. Designed with carefully selected friction materials, they provide reliable braking across a wide variety of vehicles, from daily commuters to...

Brembo brake rotors embody the brand?s legacy of innovation, precision, and racing pedigree, delivering superior braking performance, durability, and safety for every vehicle and driving style. Designed and manufactured with the same engineering rigor found in Brembo?s original equipment for the world?s leading automakers,...

Brembo brake rotors embody the brand?s legacy of innovation, precision, and racing pedigree, delivering superior braking performance, durability, and safety for every vehicle and driving style. Designed and manufactured with the same engineering rigor found in Brembo?s original equipment for the world?s leading automakers,...

Bilstein B6 Performance dampers are a performance upgrade to OE dampers designed to be paired with the OE factory spring. These dampers offer application specific valve settings with a monotube design to bring out the best handling performance of a vehicle. Each damper is...

Bilstein B4 OE Replacement dampers are specifically engineered to be the best choice for maintaining the original ride quality of your vehicle, while meeting or exceeding OE standards. These dampers are the ideal choice for the driver looking to restore the original performance and...

Upgrade your vehicle’s ignition system with aFe POWER SCORCHER High-Performance Ignition Coils – a premium direct replacement for your factory coils. Our high-performance coils have a lower primary resistance than factory units, resulting in a high energy spark that ensures complete combustion from idle...

Sealed, molded plastic or aluminum cover provides factory style with less intake noise than open systems. Our specially engineered air box openings pull cold air from outside the engine compartment increasing engine efficiency and producing greater performance gain. The cross-linked polypropylene rotomolded plastic air...

Constructed with 100-percent polyurethane boxed frame, this non-oiled OE replacement filter provides years of hassle free service. Three Layers of Progressive Synthetic (Dry) Media for Maximum Convenience. Washable and reusable for multiple cleaning cycles, the tall open evenly spaced pleats provide excellent dust holding...

Constructed with 100-percent polyurethane boxed frame, this high flow, oiled OE replacement performance filter will outflow the stock filter for improved horsepower and torque. Five layers of progressively finer mesh cotton gauze media provide maximum airflow for best performance results. Washable and reusable for...

The N55 is a powerhouse, capable of producing over 600 horsepower on stock internals, but it has weak points. All that power requires almost 3x the boost the N55 was designed for. While the engine can handle it, your charge pipes may not be...

The Multiple Award-winning Kompact EM Series of Upgraded Diverter Valves are the world's first truly plug-and-play Upgrade solution for your factory diverter valve. Unplug and unbolt your OEM Valve, and install a Kompact EM Valve. No adaptors, hoses or extra assembly is required.This Part...

The award-winning Kompact EM series Blow-Off Valves, are the world's first truly plug and play Blow-Off Valves. Simply unplug and unbolt your OEM Blow-Off Valve, and install ours in its place. No adapters, hoses or extra assembly required. All this while retaining complete OE...

NGK Laser Iridium High Ignitability spark plugs offer the best combination of performance and longevity. Engineered specifically for OE applications, Laser Iridium High Ignitability spark plugs are tested to the highest standards to ensure quality and durability. Iridium tipped center electrode provides durability six...

King Engine Bearings BMW N55B30A Sputter Replacement Rod Bearing Set - Size STD (2 Pair)This Part Fits: Year Make Model Submodel 2011 BMW 1 Series M Base 2008-2013 BMW 135i Base 2013 BMW 135is Base 2014-2016 BMW 228i Base 2015-2016 BMW 228i xDrive Base...