- Description
- Fitment
- Refund Policy
The Karbonius G82 M4 Carbon CSL Trunk Lid is a hand-crafted, CSL-specification reproduction of OEM part number 51-19-7-886-180, bringing the visual drama and weight advantage of the factory M4 CSL tailgate to any G82 M4 Coupe build. At just 4.7 kg, the Karbonius trunk lid delivers the same distinctive CSL silhouette and OEM-level fitment while trimming meaningful mass from the rear of the vehicle.
Each trunk lid is manufactured entirely by hand at Karbonius' facility in Spain using the finest 100% prepreg carbon fiber, with critical stages — 3D scanning, autoclave curing, and robotic cutting — ensuring dimensional precision and finish consistency that handwork alone cannot guarantee. The result is a piece that matches OEM fitment tolerances while offering the weight and aesthetic benefits that carbon fiber provides.
All holes for the installation of original accessories, lighting, locks, upholstery, and hardware are pre-cut to OEM specification, making the installation straightforward with no modification required. Every Karbonius trunk lid is individually numbered for authenticity. Contact Karbonius for additional weave and finish options beyond the standard offering.
What's Included
- Carbon fiber CSL trunk lid
- All OEM accessory mounting holes pre-cut (lights, locks, upholstery, hardware)
- Numbered certificate of authenticity
Product Details
- OEM part number reproduction: 51-19-7-886-180
- Weight: 4.7 kg
- 100% prepreg carbon fiber construction
- Mold and autoclave-cured for dimensional accuracy and finish quality
- 3D scanning and robotic cutting for precision fitment
- All OEM accessory holes pre-cut — no modification required for installation
- Additional weave and finish options available on request
- Individually numbered for authenticity
- 2-Year manufacturer warranty
Vehicle Applications
Important Notes
- G82 M4 Coupe fitment only — not compatible with G83 M4 Convertible
- Contact IND for additional weave patterns and finish options
Recommended Upgrades
- Karbonius G82 M4 CSL Carbon Rear Seat Delete Closeout Kit
- Karbonius G8X M2 / M3 / M4 Carbon Front Strut Brace
- Karbonius G8X M2 / M3 / M4 CSL Carbon Cooling Shroud Cover
Notes
- Designed, engineered, and manufactured in Spain under UNE-EN ISO 9001:2015 standards
- Professional installation recommended
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.
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.
