- Description
- Fitment
- Refund Policy
The Karbonius M3 CSL (S54) Carbon Airbox Heat Shield Kit is purpose-designed to reduce intake air temperature inside the S54 CSL-style airbox, improving engine combustion efficiency and protecting the heat-sensitive carbon airbox from sustained engine bay temperatures. This is the definitive thermal management accessory for any S54 build running a Karbonius CSL Carbon Airbox, Race Carbon Airbox, or the BMW OEM CSL airbox.
The kit comprises 14 precision CNC-cut pieces of self-adhesive aluminized fiberglass that together cover the full base of the airbox with zero gaps — all pieces overlap to ensure complete coverage. Installation requires no tools and is straightforward for any enthusiast. The self-adhesive backing withstands direct temperatures of 250°C, while the aluminized fiberglass substrate withstands temperatures up to 600°C. Every piece is manufactured at Karbonius' facility in Spain under ISO 9001:2015 quality management standards and is individually numbered for authenticity.
At just 150 grams, this kit adds virtually no weight while delivering meaningful protection against heat soak in the intake path.
What's Included
- 14x precision CNC-cut aluminized fiberglass heat shield pieces (self-adhesive)
- Numbered certificate of authenticity
Product Details
- Weight: 150 g
- Material: Aluminized fiberglass, self-adhesive backing
- Adhesive temperature rating: up to 250°C direct
- Fiberglass temperature rating: up to 600°C
- 14 CNC-cut pieces — full coverage with overlapping fit
- No tools required for installation
- Individually numbered for authenticity
- Manufactured under ISO 9001:2015 quality management standards
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.
