Genuine BMW Exhaust Valve Actuator 18308686640 For G20, G22, F90, G05, G29 & more

Maintain your BMW’s precision exhaust performance with the Genuine BMW Exhaust Valve Actuator (Part No. 18308686640). This component plays a crucial role in controlling the exhaust valve operation — dynamically adjusting backpressure and sound output for an optimal balance between performance, efficiency, and driving comfort.

Manufactured to BMW’s exact specifications, this actuator ensures perfect communication with the vehicle’s ECU and exhaust flap system. A worn or faulty actuator can cause error codes, inconsistent exhaust valve function, or loss of sound control. Replacing it with this genuine BMW unit restores full exhaust valve functionality, preserving your vehicle’s performance and OEM exhaust tone management.

Constructed from high-quality materials for durability under extreme heat and vibration, this actuator offers a direct-fit solution with guaranteed reliability and seamless integration into your BMW’s exhaust system.

Key Features

• Genuine BMW part – part number 18308686640

• Precisely regulates exhaust valve operation for ideal performance and tone

• Ensures seamless ECU communication and proper flap control

• Direct-fit OEM replacement; no coding or modifications required

• Built to withstand heat, pressure, and vibration in high-performance environments

• Restores full sound control and exhaust performance

Compatibility

This genuine BMW exhaust valve actuator fits the following models:

• BMW 2 Series: G42 (2020–2025)
• BMW 3 Series: G20 Sedan, G28 Sedan, G21 Touring (including LCI models, 2017–2025)
• BMW 4 Series: G22 Coupé, G23 Convertible, G26 Gran Coupé (including LCI models, 2019–2025)
• BMW 5 Series: F90 M5 & M5 LCI (2016–2023)
• BMW 8 Series: F91 Convertible, F92 Coupé, F93 Gran Coupé (2017–2025)
• BMW X Series: G05 X5, G06 X6, G07 X7, G18 X5L, F95 X5 M, F96 X6 M (including LCI models, 2017–2025)
• BMW Z Series: G29 Z4 (2017–2025)

Unless explicitly stated otherwise, all products sold by R44 Performance Limited are designated RACE ONLY and are solely for competition or off-road use limited to racing formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, may violate local, state, and Federal laws. R44 Performance Limited does not implicitly or explicitly confirm the legality of using any products it sells on public roads; that is entirely the responsibility of the consumer.

It is the responsibility of the customer to check with all federal, state local and environmental laws before ordering and installing a product. R44 Performance Limited is not responsible for any fees, fines or costs that a customer may incur as a result of failing to check with federal, state, local or environmental laws before ordering and installing a product.

We get a large number of custom orders and requests everyday, so as a result it is not always possible for us to keep every item in stock at all times in our warehouse. If you require the item urgently please contact our sales team here to check the stock before you make your purchase.

We totally understand if you're not certain a part will be compatible with your car, so we highly recommend contacting us here with your query. Our friendly sales team will then be in touch to confirm if this part is the correct part you are looking for.

All in stock products ship the same day if ordered before 2pm GMT

For out of stock items we will contact you with an estimated wait time if not otherwise specified above.

We offer worldwide shipping on all products. If upon receiving your product you wish to return; we offer a 30-day returns policy. For our in-depth returns information please follow the link. "R44 Returns Policy

All of our products come with a standard warranty of 1-3 years. This is dependant on the type of product however. For more details please see our warranty page here.