- Description
- Fitment
- Refund Policy
The MMX Performance Lowering Spring Set for the BMW G8X M3 and M4 delivers the ideal balance of improved handling, refined ride quality, and a more aggressive stance. Developed through extensive testing, this spring kit enhances the driving dynamics of the G80 M3 and G82 / G83 M4 without compromising daily usability.
By lowering the vehicle’s center of gravity, the MMX springs reduce body roll and improve overall chassis control. The result is sharper turn-in, increased stability through corners, and a more connected driving experience. Unlike overly aggressive spring setups, MMX has carefully engineered progressive spring rates that maintain comfort at lower speeds while providing increased support under load.
The transformation is equally noticeable visually. The reduced ride height eliminates the factory wheel arch gap, giving the G8X platform a more purposeful, OEM+ stance that complements the car’s design without appearing overdone.
Designed to work seamlessly with both factory Adaptive M suspension and static dampers, the MMX springs ensure proper damper compatibility and avoid the harshness or instability often associated with mismatched aftermarket setups. Going lower or stiffer than this balanced configuration can negatively impact ride quality and suspension performance, making this kit the optimal solution for both street and spirited driving.
Finished in MMX Metallic Gunmetal Grey, the springs offer long-term durability while maintaining a premium appearance.
Product Details
- Optimized progressive spring rates for improved handling and comfort
- Reduces body roll and enhances chassis response
- Maintains OEM ride quality for daily driving
- Compatible with Adaptive M and static factory dampers
- Lowers vehicle approximately 30mm front / 30mm rear (RWD)
- Lowers vehicle approximately 25mm front / 20mm rear (xDrive)
- Durable powder-coated finish in MMX Metallic Gunmetal Grey
- Engineered specifically for G8X platform applications
Available Configurations
- MMR08-1601: G80 M3 RWD
- MMR08-1604: G80 M3 xDrive
- MMR08-1602: G82 / G83 M4 RWD
- MMR08-1606: G82 / G83 M4 xDrive
Vehicle Applications
Notes
- Designed for use with factory dampers, both Adaptive M and non-adaptive
- Professional installation recommended
- Includes a 1-year manufacturer warranty against defects in materials and workmanship
- Designed and tested in the United Kingdom
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.
