- Description
- Fitment
- Refund Policy
The Karbonius E46 M3 Carbon Vented Fender Set is a fast, effective way to shed weight while transforming the stance and aerodynamics of the E46 M3. Inspired by the Porsche 991 GT3 RS aesthetic, the vented design was a radical concept for a road car when introduced but pairs beautifully with any track-focused E46 M3 build.
Based on OEM M3 dimensions, the Karbonius fenders add 15 mm of width per side for additional tire clearance, with integrated carbon vented louvers that evacuate accumulated air from the wheel arch — reducing air pressure and increasing downforce at speed.
Each fender is manufactured from 100% prepreg carbon fiber, cured in mold and autoclave at Karbonius' facility in Spain, and individually numbered for authenticity. At only 980 grams per fender, the set delivers a combined 2 kg weight reduction over the factory steel fenders.
What's Included
- Left and right carbon vented fenders
- Integrated carbon vented louvers
- Front bumper guides for improved bumper-to-fender fitment
- Numbered certificate of authenticity
Product Details
- Weight: 980 g per fender (approx. 2 kg total reduction vs. OEM)
- Additional 15 mm width per side for wider tire clearance
- Integrated vented louvers reduce wheel arch pressure and increase downforce
- 100% prepreg carbon fiber construction
- Autoclave-cured for strength and finish quality
- Exterior available primed or in 2x2 gloss carbon, both with a carbon vent
- GT3 RS-inspired aesthetic
- Individually numbered for authenticity
Installation Note
Includes front bumper guides to modify bumper fitment to better match the widened fender profile. Click here for the official Karbonius installation instructions (PDF).
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.
