

Product Details
About this part
Dinan's 370x32mm 2-piece 4-piston Big Brake Kit (BBK) is an ultra-high-end solution for maximum stopping power. Each feature-packed solution is specifically tailored to your vehicle and provides exceptional stopping-power in a wide operating range from daily driving to professional racing. Because of this, the system provides the correct brake bias and integrates seemlessly with the ABS and stability systems which is critical under emergency braking situations. This upgrade handily out-brakes, out-lasts, and out-performs any non-vehicle application specific OEM swap kits, and rivals much more expensive top-tier systems. Whereas most systems on the market either make heavy sacrifices to either look fancy, cut weight, or cut costs, the Dinan system is designed to simply brake better, last longer, and stand the test of time!
Fits the Following Vehicles
- Years: 2015-2021
- Make: BMW
- Models: M2, M3, M4
- Engine: /3.0L L6
- Submodels: Base, Competition, CS, GTS
- Body Styles: Convertible, Coupe, Sedan
Fitment
Not sure it fits? Contact us with your car's year, model and VIN and we'll help you confirm before you order.
If a part doesn't fit as expected, contact us and we'll work with you to resolve it.
Majority of products have a fitment section in the product description or within the title.
Returns
- Unused, uninstalled parts can be returned or exchanged within 30 days of the order date.
- To start a return: Contact us first, don't use Return to Sender.
- Returns can have up to a 20% restocking fee.
- Built-to-order and special-order items can't be returned or cancelled once production begins.
Shipping
- Orders are processed 7 days a week to ensure your product ships as quickly as possible.
- Inspect parts within 10 days of delivery, and reach out regarding any damage or missing pieces.
See our Tariff Policy
Warranty
- All parts retain the manufacturer's warranty.
- Warranty claims are subject to the manufacturer's approval.