ECS Tuning Carbon Fibre Twin Intake System – BMW 335i / 135i (N54)

Dual cone intake kit in genuine carbon fibre for the N54. Frees up airflow to both turbos, adds an aggressive induction sound and a show-quality engine bay. Includes heat shields, couplers and hardware.

At 811 Motorsport, we aim to provide a smooth and reliable ordering experience. Please review our shipping, return, and refund policy before placing your order.

Shipping & Delivery

811 Motorsport ships orders locally and internationally, subject to product availability and destination.

Shipping costs and estimated delivery times are calculated based on the destination, order size or weight, and selected shipping method.

Delivery Times

Estimated delivery times may be provided during checkout or after your order is confirmed.

Delivery times are estimates and may vary due to circumstances beyond our control, including carrier delays, customs clearance, weather conditions, or manufacturer and supplier delays.

Order Tracking

Once your order has been shipped and tracking information becomes available, it will be provided to you so you can monitor your shipment.

Shipping Address

Customers are responsible for providing a complete and accurate shipping address.

811 Motorsport is not responsible for delays, failed deliveries, or additional charges resulting from incorrect or incomplete shipping information provided by the customer.

Damaged or Incorrect Shipments

If your order arrives damaged or you receive an incorrect product, please contact 811 Motorsport as soon as possible with your order number, photos, videos, and details of the issue.

Returns & Refunds

Special Orders

Most products sold by 811 Motorsport are considered special-order items and are ordered specifically based on the customer's request.

For this reason, returns, exchanges, or cancellations are not accepted unless the product has a confirmed manufacturing defect, arrives damaged, or an incorrect product was supplied.

Customers are responsible for reviewing their order details and product specifications carefully before completing their purchase.

Return Condition

Any product approved for return must be unused, uninstalled, and in the same condition as received.

The product must be returned with its original packaging, labels, accessories, manuals, and all included items.

Products that have been installed, used, modified, damaged after delivery, or returned without their original packaging may not be eligible for return or refund.

Eligible Returns

A return or refund may only be considered if:

• The product has a confirmed manufacturing defect.

• The product arrives damaged.

• An incorrect product was supplied due to an order or fulfillment error.

Inspection & Manufacturer Approval

All return and refund requests are subject to inspection and, where applicable, confirmation from the manufacturer or supplier.

811 Motorsport may request additional photos, videos, product information, or other evidence required to verify the issue.

Refunds

Once the issue has been verified and the refund has been approved by the manufacturer or supplier, the refund will be processed to the applicable payment method.

Approved refunds are generally processed within 5–10 business days after final confirmation. Additional processing time may apply depending on the customer's bank or payment provider.

Order Cancellation

Because our products are specially ordered, orders cannot normally be cancelled once they have been confirmed or processed.

Cancellation and refund requests may only be considered in cases involving a confirmed product issue, order error, or other circumstance approved by 811 Motorsport.

Contact Us

For any shipping, return, refund, or order-related concerns, please contact the 811 Motorsport customer support team with your order number and details of the issue.