- Description
- Fitment
- Refund Policy
The Karbonius E46 M3 / 3-Series Carbon Strut Brace is one of the most effective handling upgrades available for the E46 platform — directly inspired by the discontinued BMW Performance strut bar, but re-engineered in premium prepreg carbon fiber. A strut tower brace adds meaningful structural strength to the chassis, preventing strut tower flex and maintaining suspension geometry under hard cornering, both on road and track.
At just 1,100 grams, the Karbonius brace is exceptionally lightweight without compromising the structural integrity required of a functional chassis component. The carbon bar is manufactured in prepreg carbon fiber and cured in an aluminum mold in an autoclave; the strut tower caps are 5-axis CNC machined from anodized aluminum, available in silver or black, and include six titanium strut tower nuts. The 2×2 carbon weave, available in a gloss or matte finish, provides a striking, eye-catching appearance that complements any E46 engine bay.
Each piece is individually numbered to guarantee authenticity and origin.
What's Included
- Carbon fiber strut brace with integrated aluminum mounting hardware
- 6 titanium strut tower nuts
- Numbered certificate of authenticity
Product Details
- Weight: 1,100 g
- 2×2 twill weave prepreg carbon fiber construction
- 1x1 plain weave available by custom request
- Carbon bar available in a gloss or matte finish
- Cured in aluminum mold and autoclave
- Anodized aluminum strut tower caps in silver or black, 5-axis CNC machined
- 6 titanium strut tower nuts included
- Controlled break zone for safety
- Individually numbered for authenticity
Installation Note
Installation instructions, including terminal relocation guidance, are available via the official Karbonius document: E46 Strut Brace 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.
