- Description
- Fitment
- Refund Policy
Designed for racing use. Requires custom air ducting from the kidney grille (not included).
The Karbonius E9X M3 (S65) Carbon Inlet Plenum — Race is Karbonius' most focused intake solution for the S65 V8 — a standalone carbon plenum designed specifically for motorsport applications where custom intake routing is already in place. Where BMW never developed a carbon plenum for the S65 as they did for the S54 CSL, Karbonius engineered this Race Plenum using modern 3D and 2D flow analysis to optimize the air volume and internal geometry that feeds the engine — resulting in improved engine efficiency and a power gain.
The exclusive design minimizes internal turbulence while maximizing the volumetric efficiency of the naturally aspirated V8. Beyond the power benefit, the Karbonius Race Plenum delivers a dramatic induction sound and transforms the appearance of the S65 engine bay with motorsport-grade carbon fiber construction.
Manufactured from 100% prepreg carbon fiber in 2x2 twill weave and autoclave-cured in Spain under ISO 9001 quality management standards, the plenum is paired with CNC machined aluminum components for precision fitment. Optional OEM ///M and V8 badges are available and are not included as standard.
What's Included
- Carbon inlet plenum in 2x2 twill weave
- CNC machined aluminum components
- Numbered certificate of authenticity
Product Details
- 2x2 twill prepreg carbon fiber construction
- CNC machined aluminum hardware and fittings
- Optimized internal geometry for improved airflow and reduced turbulence
- Dramatic S65 V8 induction sound
- Autoclave-cured for strength and finish quality
- Individually numbered for authenticity
Important Notes
- Special Order product — not a stocked SKU. Returns are not accepted.
- Custom kidney grille air ducting required — not included.
- OEM ///M and V8 badges are optional and sold separately.
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.
