• BMW G80/G82 M3 M4 Exhaust Valve Controller

AeroflowDynamics

BMW G80/G82 M3 M4 Exhaust Valve Controller

G8XM3M4-EXHST-CTRL

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All sales are final. We do not accept returns or exchanges, except in the case of a defective product.

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Lead Times & Shipping Policy

Exhaust Systems

All AeroFlowDynamics F1, stainless steel, and titanium exhaust systems are made to order.
Production begins immediately after your order is placed.

  • Typical Lead Time: 4–5weeks ( unless in stock )
  • All exhaust system orders are FINAL SALE
  • No cancellations, returns, or modifications can be made once the order is submitted, as production starts right away.

CNC-Machined Items

CNC-cut aero components are produced per order and require material allocation and machine programming.

  • Typical Lead Time: 2–4 weeks
  • CNC items may be canceled within the first (5) business days
  • After 5 business days:Orders become FINAL SALEAny cancellation request will be subject to a restocking fee due to production preparation already in progress

Holiday Fulfillment Notice

DUE TO HOLIDAY SALE AND INFLUX OF ORDERS, FULFILLMENT MAY BE DELAYED BY SEVERAL DAYS. THANK YOU FOR YOUR PATIENCE WHILE OUR TEAM WORKS TO FULFILL YOUR ORDERS. SHIPPING MAY ALSO EXPERIENCE DELAYS FROM COURIERS DUE TO HOLIDAY TRAFFIC.

We appreciate your understanding while our team processes, builds, and ships all orders during this peak season.

Returns

RETURN POLICY:

No Return Policy

All sales are final. We do not accept returns or exchanges, except in the case of a defective product. If you receive a defective product, please contact us within 2 days of receiving the product to arrange for a return or exchange.

To be eligible for a return or exchange due to a defective product, you must provide proof of purchase and the product must be in its original packaging.

If a product is deemed eligible for return/exchange, the customer is responsible for any and all shipping costs.

We reserve the right to refuse any returns or exchanges that do not meet the above criteria.

If you have any questions or concerns about a product before making a purchase, please contact us for more information. We will be happy to assist you.

By making a purchase on our website, you acknowledge and agree to this no return policy. If you do not agree to this policy, please do not make any purchases from our website.

Warranty

WARRANTY:

Warranty covers all defects in materials and craftsmanship over a 30-day period from purchase. Warranty is only applicable to the original purchaser/owner of the item(s). Warranty does not cover items damaged by customer misuse and or abuse. Aeroflowdynamics is NOT responsible for any and all damages caused by the improper installation of any product. Please mail sales@aeroflowdynamics.com with any questions in regards to warranty.

If the package arrived damaged, please notify us within 48 hours of when you receive the package. After the 48 hours, we will not be able to offer a refund or ship you a replacement.

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Shipping Notice

Some oversized, heavy, or specialty items may incur additional shipping charges based on your delivery location. If this applies to your order, our team will contact you after checkout with the updated cost. Orders will not ship until additional charges are confirmed and paid.

Description

Enhance the sound of your BMW M3 Competition G80 with our advanced Valve Controller. Designed in USA .this device allows you to take full control over your vehicle's exhaust sound.

Once installed, you can manually open and close the AFD exhaust flap on your BMW M3/M4  any time. The controller operates with a simple remote or can be integrated with your car’s mirror buttons for seamless use.

Installation is straightforward and can be done by anyone with basic skills. The device plugs directly into the our exhaust module—simply remove oem valve and replace with AFD valve module, connect it to the provided socket, then reconnect it to the exhaust flap socket. Installation involves accessing the trunk and under-body, utilizing an existing cable duct or sealing plug to route the device. 

Our Valve Controller Module is designed for safe operation, preventing permanent closure of the exhaust flap to avoid potential engine damage during high-throttle driving.

Features include:

OPEN FULL AND CLOSE 

**Memory Function:** With the remote, activate memory to retain your preferred setting (100% OPEN or STOCK) even after turning off the engine.

Our system is designed to integrate seamlessly without error messages or interference with the car’s data bus. The controller is plug-in diagnostic-reader proof and leaves no trace when your car goes for maintenance. 


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