- Description
- Fitment
- Refund Policy
The BMW M Performance G8X M3 / M4 Carbon Rear Diffuser is a genuine OEM aerodynamic component that anchors the rear end of the G80 M3 and G82 M4 with a purposeful, motorsport-derived presence. Manufactured from carbon fiber reinforced plastic, this rear diffuser delivers the aggressive visual character of the M Performance carbon exterior program while maintaining factory-correct fitment and build quality.
The exposed carbon fiber weave texture is inherent to the material's high rigidity and low mass; qualities that define its widespread use in motorsport. As the cornerstone of the M Performance rear carbon package, this diffuser pairs with the optional M Performance Carbon Rear Winglet Set for a complete, cohesive rear aero treatment. No modifications are required; all components mount to factory attachment points.
Product Details
- Genuine BMW M Performance carbon rear diffuser for G8X M3 / M4
- Carbon fiber reinforced plastic construction; lightweight and highly rigid
- Fits G80 M3 Sedan, G82 M4 Coupe, and G83 M4 Convertible
- Optional: M Performance Carbon Fiber Rear Winglet Set (sold separately)
- BMW Part Number: 51128075031
Vehicle Applications
Notes
- Genuine BMW OEM component
- Pair with the M Performance Carbon Rear Winglet Set (sold separately) to complete the rear carbon package.
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.
