- Description
- Fitment
- Refund Policy
The Karbonius F8X M3 / M4 Carbon Rear Wing – Stage 1 is a purpose-designed aerodynamic component built for both track effectiveness and the refined visual character expected of a premium Karbonius product. Weighing just 3 kg, the wing is manufactured entirely from 100% prepreg carbon fiber and autoclave-cured at Karbonius' facility in Spain under ISO 9001 quality management standards — delivering motorsport-grade construction in a package that is equally at home on a race circuit or a spirited road build.
The wing is engineered for the F8X chassis specifically, developed by the Karbonius engineering team using both 2D and 3D analysis of the wing and the vehicle. The result is an aerodynamic component that generates meaningful downforce at track speeds while adding a level of visual aggression that the OEM trunk spoiler cannot match. The adjustment system is laser-engraved directly into the aluminum uprights, providing clearly marked positions for maximum downforce or maximum efficiency without guesswork.
Anodized aluminum uprights combine light weight with superior durability at the mounting interface, while the full carbon wing blade and endplates keep overall mass to a minimum. Every piece is individually numbered — a standard Karbonius practice that guarantees origin and authenticity.
What's Included
- Carbon fiber rear wing blade and endplates
- Anodized aluminum uprights (pillars)
- Stainless steel hardware
- Numbered certificate of authenticity
Product Details
- Weight: 3 kg (total wing assembly)
- Dimensions: 125 × 25 × 15 cm
- 2x2 twill weave, gloss finish
- 100% prepreg carbon fiber wing blade and endplates
- Autoclave-cured for strength and finish quality
- Laser-engraved adjustment system on anodized aluminum uprights — clearly marks downforce and efficiency positions
- Lightened anodized aluminum uprights for minimal added mass
- Designed using 2D and 3D aerodynamic analysis
- Supplied chassis-specific — select F80 M3 or F82 M4
- Individually numbered for authenticity
Important Notes
- Not made for the F83 M4 Convertible
Related Products
Returns
Our policy lasts 14 days. If 14 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange. All items are subject to 15% restocking fee from the manufacturer.
To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.
Additional non-returnable items:
Gift cards
Downloadable software products
To complete your return, we require a receipt or proof of purchase.
Please do not send your purchase back to the manufacturer.
There are certain situations where only partial refunds are granted (if applicable)
You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of shipping to you will be deducted from your refund. If your original order qualified for free shipping, the actual cost of shipping the item to you will still be deducted from your refund.
If you would like to start a return please click here
Refunds (if applicable)
Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.
If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.
You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of shipping to you will be deducted from your refund. If your original order qualified for free shipping, the actual cost of shipping the item to you will still be deducted from your refund.
Late or missing refunds (if applicable)
If you haven’t received a refund yet, first check your bank account again. Then contact your credit card company, it may take some time before your refund is officially posted. Next contact your bank. There is often some processing time before a refund is posted. If you’ve done all of this and you still have not received your refund yet, please contact us at info@amtuning.ca.
Sale items (if applicable)
Only regular priced items may be refunded, unfortunately sale items cannot be refunded.
Labor Fees (if applicable)
AM Tuning Canada is not responsible for, and shall not be liable for, any labor fees, installation charges, removal charges, diagnostic fees, or other service-related costs incurred by the customer or any third party in connection with the installation, removal, modification, servicing, or use of any products purchased from AM Tuning Canada. Unless expressly agreed to in writing by AM Tuning Canada, all such labor and service costs are the sole responsibility of the customer.
Exchanges (if applicable)
To start an exchange, click here
Non-refundable items
The following items are non-refundable and non-returnable once purchased: oils, fuel or oil additives, filters, tuning cables, OBDeleven products, Braum seats, spark plugs, coil packs, and similar consumable, wheel spacers, wheels bolts, license plate brackets, electronic tuning components and any other product subject to discretion of AM Tuning Canada.
Other products from brands such as MHD, Bootmod3, Ecutek, Braum racing, Novitec are also non-refundable and non-returnable.
All sales of these items are final and are subject to the policies and discretion of AM Tuning. By completing a purchase, the customer acknowledges and agrees to these terms.
