

BMW Exhaust Valve/Flap Controller
The BMW Exhaust Valve/Flap Controller is a platform-specific upgrade developed for enthusiasts seeking precise fitment, clean aesthetics, and durable construction. Each unit is built using advanced materials and design processes to enhance both form and function.
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**Key Features**
• CAD-modeled for platform-specific fitment
• Manufactured using durable composite or metal alloys
• Enhances factory lines while maintaining clean visuals
• Simple bolt-on installation (varies by product)
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**Compatible Models**
See title or image references. Contact us to verify fitment if you have any questions.
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**What’s Included**
• See images or title for reference
• Installation hardware not included on most products
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**Why Buy From Eterna?**
At Eterna Motorworks, we source and deliver only the highest-quality aftermarket parts, validated for both track and street use. Each component is selected based on real-world performance, manufacturing integrity, and visual refinement.
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Professional installation is highly recommended.
For full fitment, installation, and store policy details, please refer to our policies before purchasing.
Worldwide shipping available upon request.
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Your next mod starts here. Upgrade your build the right way with Eterna Motorworks.
Pairs well with

BMW Exhaust Valve/Flap Controller
FAQs
How long will it take to receive my order?
All USA standard orders take approximately 7-14 business days to fully process and ship.
All International orders take approximately 10-20 business days to fully process and ship.
Please click here to read our full shipping policy.
Why can't I checkout with my address?
For all orders outside of USA & CAD please fill out the form above with the products you are interested in and one of our team members will get back to you shortly.
Can I cancel my order?
If you wish to cancel your order at any time. This option is only available if the order has not yet shipped. Please fill out the form above us so we can complete your request. If your order has been shipped please refer to our refund policy here. There are absolutely nocancellations on special order items.
How do I return a product?
Once you received your order from the delivery date, you have 7 calendar days from that period to return the items. We do not accept ANY returns that are longer than 7 calendar days from when it has been received.
Click here to read our full refund policy.
How can I get sponsored?
Its very rare that we offer sponsorships but in the event you wish to submit a proposal please feel out our contact form and a team member will get back to you within 1-2 business days.