Includes all taxes
Model: For Mercedes E320 E400 E43 W213 3.0T
Material: T304 Stainless Steel / Grade 5 Titanium
Function: Valved exhaust system (loud sound when valves are open, quiet and comfortable when valves are closed)
Installation: Plug and play, bolt-on installation (no damage to any factory parts, can be returned to the original exhaust at any time)
For more information, please contact:
Whatsapp:18038561810
imessaga / Wechat:18038561810

Valvetronic exhaust system design:
Switch between aggressive sound and quiet and soft sound with the push of a button.
Support customized electronic valves, pneumatic valves and OEM original valve control

Handcrafted precision TIG welding (inert gas shielded welding) to ensure high strength and durability.

Includes multiple optional tips styles. The exhaust system not only delivers an aggressive sound but also provides a more attractive appearance.

Production Time: For products not in stock, production will be arranged according to the order. We will build the system and conduct QA testing as quickly as possible.
Estimated processing time: Downpipe 7–10 days, stainless steel exhaust 7–14 days, titanium exhaust 15–20 days.
For any delays caused by uncontrollable factors, we will inform you in advance via email.
Packaging: Multi-layer foam cushioning inside, with reinforced thick corrugated outer box packaging.
Shipping: AliExpress Standard Shipping (shipping method recommended by AliExpress), or if you require DHL / FedEx / UPS or other shipping methods, please contact us.
Warranty: All of our products come with a one-year quality guarantee.



Support LOGO customization, you can contact us for more personalized customization services.

We have over 10 years of experience in exhaust manufacturing, with high-precision production equipment and professional production workshops. Strict quality assurance and professional customer service team enable you to experience better products and services.



Payment Policy – BILLIONS BIRDS
At BILLIONS BIRDS, we are committed to providing a safe, secure, and seamless payment experience for our customers.
1. Accepted Payment Methods
We accept the following payment options:
Major Credit & Debit Cards (Visa, MasterCard, American Express)
Secure Online Payment Gateways (such as PayPal, Stripe, or other providers available at checkout)
Any additional payment methods displayed during checkout
All payments must be completed in full at the time of purchase.
2. Secure Transactions
All transactions are processed through encrypted and secure payment systems to protect your personal and financial information. We do not store your full payment details on our servers.
3. Currency
Prices are displayed in the currency indicated on the website. If you are purchasing from another country, your bank may apply currency conversion fees.
4. Order Confirmation
Once your payment has been successfully processed, you will receive an order confirmation email containing your purchase details.
5. Failed or Declined Payments
If your payment is declined, please verify your billing information or contact your bank. Orders will only be processed after successful payment confirmation.
6. Fraud Prevention
BILLIONS BIRDS reserves the right to cancel or refuse any order if fraud or unauthorised activity is suspected.
Delivery Policy – BILLIONS BIRDS
At BILLIONS BIRDS, we are dedicated to delivering your orders safely and efficiently.
1. Order Processing
All orders are processed within 1–3 business days after payment confirmation. Orders are not processed or shipped on weekends or public holidays.
2. Shipping Times
Estimated delivery times vary depending on your location:
Domestic Shipping: 3–7 business days
International Shipping: 7–15 business days
Please note that delivery times are estimates and may vary due to customs procedures, carrier delays, weather conditions, or other unforeseen circumstances.
3. Shipping Costs
Shipping fees are calculated at checkout based on your location and selected shipping method. Any customs duties, taxes, or import fees are the customer's responsibility.
4. Tracking Information
Once your order has been shipped, you will receive a confirmation email with tracking details (if available) so you can monitor your package.
5. Delivery Issues
If your order is delayed, lost, or arrives damaged, please contact us within 7 days of the expected delivery date. We will work with the shipping carrier to resolve the issue as quickly as possible.
6. Incorrect Shipping Information
Customers are responsible for providing accurate shipping details at checkout. BILLIONS BIRDS is not responsible for orders shipped to incorrect addresses provided by the customer.
Refund Policy – BILLIONS BIRDS
At BILLIONS BIRDS, customer satisfaction is our top priority. If you are not completely satisfied with your purchase, we’re here to help.
1. Return Eligibility
You may request a return within 14 days of receiving your order. To qualify for a return:
The item must be unused, unworn, and in the same condition as received.
The item must be in its original packaging.
Proof of purchase (order confirmation or receipt) is required.
Certain items may not be eligible for return, including clearance items, gift cards, or personalised/custom products.
2. Non-Refundable Items
The following items are non-refundable:
Final sale or discounted items
Gift cards
Items damaged due to misuse, negligence, or improper care
3. Return Process
To initiate a return, please contact our customer support team with your order number and reason for return. If your return is approved, you will receive instructions for returning the item.
Unless the item is defective or incorrect, customers are responsible for return shipping costs.
4. Refund Processing
Once we receive and inspect your returned item:
We will notify you of the approval or rejection of your refund.
If approved, the refund will be issued to your original payment method within 5–10 business days.
Please note that banks or payment providers may require additional time to process refunds.
5. Damaged or Incorrect Items
If you receive a damaged, defective, or incorrect item, please contact us within 7 days of delivery and provide clear photos of the product and packaging. We will arrange a replacement or full refund at no additional cost.
6. Late or Missing Refunds
If you have not received your refund:
Check your bank account again.
Contact your credit card company or payment provider.
If the issue persists, don't hesitate to contact our support team for assistance.
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