- Description
- Fitment
- Refund Policy
The Brembo GT-R Big Brake Kit for the BMW F85 X5M and F86 X6M represents the highest level of rear braking performance within Brembo’s Gran Turismo lineup, engineered for drivers who demand maximum braking stability under extreme street and track conditions. Designed with motorsport-derived technology, this system enhances rear brake balance, thermal stability, and pedal consistency during aggressive driving.
At the core of the GT-R system are Brembo’s 4-piston billet monobloc radial mount calipers paired with large 380x28mm 2-piece floating discs. This combination provides increased structural rigidity, improved heat dissipation, and more precise modulation compared to cast caliper systems. Whether on the road or under repeated high-load braking, the result is improved rear braking control with reduced fade in demanding environments.
The high carbon alloy discs feature a corrosion-resistant finish and Brembo’s advanced floating mounting system with an anti-rattle spring. Combined with a curved vane internal ventilation design, the system is optimized for maximum heat management, maintaining consistent braking performance even under sustained high-speed use.
Product Details
- Rear axle Brembo GT-R big brake kit
- 4-piston billet monobloc radial mount calipers
- 380x28mm 2-piece floating discs
- Available in Cross Drilled, Type 1 Slotted, and Type 3 Slotted disc configurations
- Advanced high carbon alloy discs with corrosion-resistant plating
- Floating disc-to-hat mounting system with anti-rattle spring
- Brembo High Performance brake pads
- Stainless steel braided brake lines included
- CNC billet caliper adapters included
- All required mounting hardware included
Vehicle Applications
- BMW F85 X5M
- BMW F86 X6M
Technical Overview
- Axle: Rear
- Caliper Type: Billet Monobloc Radial Mount
- Caliper Configuration: 4-Piston
- Disc Diameter: 380mm
- Disc Width: 28mm
- Disc Construction: 2-Piece Floating
- Disc Vane Design: Curved Vane Ventilation
- Disc Material: High Carbon Alloy
- Mounting System: Floating Mount with Anti-Rattle Spring
- Pad Compound: Brembo High Performance
- Application: Street, track, and race driving
What’s Included
- (2) Brembo 4-piston billet monobloc rear calipers
- (2) 380x28mm 2-piece rear discs
- Brembo high-performance brake pads
- Stainless steel braided brake lines
- CNC billet caliper mounting brackets
- All necessary installation hardware
Notes
- Wheel clearance must be verified prior to installation
- Professional installation is recommended
- Images are for representational purposes only, actual product may vary
- This item is not eligible for return once installed or test fitted
- How to measure wheel clearance
- Brake profile cross section
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.
