2021 BMW X4 M40i Performance Parts

NOTE: FOR ALL BMW CARS MANUFACTURED ON OR AFTER 6/2020, THE ECU IS LOCKED AND CURRENTLY CAN ONLY BE UNLOCKED BY SENDING TO FEMTO DIRECTLY. ONCE THE ECU IS UNLOCKED, WE CAN TUNE AS NORMAL. Please email, fax or take a photo of the...

NO PERFORMANCE TUNE NEEDED. Active Autowerke BMW B58 Catted Downpipe - now includes turbo flange gasket SHIPPING NOW. Please note that we install the gasket into the downpipe flange as some customers were damaging the gasket on installation. NOTE: Fitment applies to US model...

NO PERFORMANCE TUNE NEEDED. Active Autowerke BMW B58 Catted Downpipe - now includes turbo flange gasket SHIPPING NOW. Please note that we install the gasket into the downpipe flange as some customers were damaging the gasket on installation. NOTE: Fitment applies to US model...

These pumps are made to order! 2-3 week assembly time. This time is an estimate; wait times may be longer.  Certain cars need an OEM BMW harness replacement! Including but not limited to x3/x4/540i Tested to 880whp on pump e85 (E80) with no signs...

Replace that OEM plastic charge pipe that is ready to fail at the site of any boost increase! Our charge pipe kit comes with an aluminum pipe, powder-coated with a satin black finish. Clearance charge pipes found HERE 4 ply silicone connectors & stainless...

The Eventuri Black Carbon Intake System for the BMW G01 X3 M40i and G02 X4 M40i with the B58D engine has been engineered to provide a significantly less restrictive airflow path to the turbocharger while maintaining low inlet air temperatures in a heat-intensive engine...

This kit isnt fully displayed in the advertised picture. This is a complete kit which includes everything you need for plug n play. ONLY WORKS WITH REFLEX PLUS EQUIPED B58 GEN 1 F SERIES BMW AND GEN 2 SUPRA What’s included with the kit:...

In Stock ready to ship from Arizona USA This PCV replacement kit includes everything you need to repair the pcv diaphragm on the b58 valve cover. Not cutting required simply pop off the broken one and replace it with this kit. Highly recommended as...

We have been in the N54/N55/S55 platform for a long while now. Time after time we see a countless amount of catastrophic failure due to failed N54 Piezo Injectors and N55/S55 Solenoid injectors.Neglecting these injectors leads to nothing but a money pit.Vader Solutions have...

Looking to improve your drag racing performance? Look no further than our high-performance drag shocks! Our drag shocks are specifically designed to provide optimal weight transfer and traction control, helping you launch off the line with maximum efficiency and speed. With their advanced damping...

NOW FEATURING PLUG AND PLAY CONNECTORS Now it is no longer necessary to cut your factory harness! The Precision Raceworks BMW G-Series and A9x Toyota Supra Billet Tophat is a great way to get the most out of any fuel system! With up to 3 dedicated...

Billet Top Hat Bulkhead Fittings Upgrade your fuel delivery with our Billet Top Hat Bulkhead Fittings, designed for precision, durability, and seamless integration into custom or high-performance builds. Crafted from high-quality billet aluminum, these fittings ensure a reliable seal and a professional finish for...

Developed and engineered with the OEM standard as the framework, all AutoTecknic front grilles are made with 100% non-recycled raw plastic that results in overall durable construction with strong clips and tabs for a secure and seamless fit. As an AutoTecknic standard, each outer...

Developed and engineered with the OEM standard as the framework, all AutoTecknic front grilles are made with 100% non-recycled raw plastic that results in overall durable construction with strong clips and tabs for a secure and seamless fit. As an AutoTecknic standard, each outer...

AutoTecknic Carbon Fiber Front Bumper Trim Set is tailored for the G01 X3 M40I and G02 X4 M40I to bring the luxury styling to the next stage. This AutoTecknic Carbon Fiber Front Bumper Trim set will attract attention with its sharp curvature while being...