MMX Performance G8X M2 / M3 / M4 Rear Differential OEM Bushing Aluminum Insert Kit - For OEM Single Rear Mount
- Description
- Fitment
- Refund Policy
The MMX Performance Rear Differential OEM Bushing Aluminum Insert Kit (MMR55-1618) is engineered for the BMW G87 M2, G80 M3 Sedan, G81 M3 Touring, G82 M4 Coupe, and G83 M4 Convertible, including applicable rear-wheel-drive and xDrive configurations.
The factory rubber differential bushings are designed to isolate drivetrain vibration while allowing a degree of movement under load. During hard acceleration, launches, and rapid changes in drivetrain torque, this movement can reduce the precision of the connection between the differential and chassis.
MMX addresses this with precision-machined aluminum inserts that fill the existing voids in the factory rubber bushings, limiting differential movement without requiring complete bushing replacement. The result is a more controlled differential mounting arrangement while retaining the factory rubber bushings.
CNC-machined from 6061-T6 billet aluminum, the kit includes four front inserts and one rear insert for the factory single rear differential mount configuration. The installation is fully reversible, allowing the original mounting arrangement to be restored if required.
Product Details
- Vehicle-Specific Fitment: Designed for the BMW G87 M2, G80/G81 M3, and G82/G83 M4, including applicable rear-wheel-drive and xDrive models.
- Factory Bushing Retention: Aluminum inserts fit into the existing OEM rubber differential bushings without requiring their replacement.
- Reduced Differential Movement: Fills the voids in the factory rubber bushings to limit differential movement during launches, hard acceleration, and dynamic loading.
- 6061-T6 Billet Aluminum Construction: Precision CNC-machined for accurate fitment and consistent support.
- Five-Piece Insert Kit: Includes four front inserts and one rear insert.
- Single Rear Mount Configuration: Designed for vehicles retaining the factory single rear differential mount.
- Factory NVH Isolation: Retains the OEM rubber bushings to help preserve their noise, vibration, and harshness isolation characteristics.
- Fully Reversible: Inserts can be removed to restore the factory bushing configuration.
- Established MMX Design: Developed from MMX differential bushing insert technology previously used on BMW F2X and F3X platforms.
Related Products
- MMX Performance BMW G8X M2 / M3 / M4 Dual Differential Mount (MMR55-1606) – Converts the factory single rear differential mount to a dual rear mount configuration for additional differential support.
- MMX Performance G8X M2 / M3 / M4 Rear Differential OEM Bushing Aluminum Insert Kit - Dual Rear Mount (MMR55-1619) – Additional insert required to support the second rear differential bushing when using the MMX Dual Differential Mount.
Compatibility Note: When upgrading to the MMX dual rear mount configuration, both related components are needed alongside this single rear mount insert kit to complete the conversion.
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.
