E9X M3 Dual Caliper Bracket Kit

The Original BMW Dual Caliper Solution! U.S. Patent No. 11,015,667

The SLG E9X M3 Dual Caliper Bracket Kit is one of the easiest and least intrusive ways to install a true Formula Drift-style standalone hydraulic handbrake system.

Unlike an in-line hydraulic handbrake, a standalone dual-caliper system does not interfere with the factory braking circuit. This helps maintain consistent brake bias, predictable pedal feel, and reliable handbrake performance.

Our patented brackets are engineered specifically for the E90 M3 knuckle to provide exceptional strength without requiring removal of the axle, hub, or wheel bearing to install. 

Watch FD driver Micah Diaz use our dual-caliper system on Hoonigan [HERE] Yea, we miss old Hoonigan too...

Installation video available [HERE]

Build a Complete Kit

Select the available options on this listing to create a nearly complete hydraulic handbrake package for your E9X M3. Just add your favorotie handbrake, and rip! We recommend using a 5/8-inch master cylinder for most applications.

Optional Hydraulic Hose Kit

Complete your dual-caliper installation with our optional chassis-specific HEL Performance hydraulic hose kit. The kit includes the hoses and fittings required to connect your hydraulic handbrake master cylinder to both rear calipers. The hoses feature stainless-steel braided construction, a protective outer coating, and swivel fittings that make routing and installation easier.

One-piece hoses are used wherever possible to reduce unnecessary connections and potential leak points. Custom bleeder-banjo fitting is also included  to make bleeding the rear calipers easier.

Why Choose SLG Brackets?

Many competing dual-caliper brackets place most of the handbrake load through the small factory dust-shield mounting points. Our patented design distributes that force across several areas of the factory knuckle. In addition to the primary mounting hardware, our brackets use an additional bolt installed through the back of the knuckle for increased support.

The brackets also locate against the factory parking-brake shoe posts and other machined surfaces on the knuckle. These additional contact points help reduce stress on the mounting bolts and provide a substantially stronger installation.

You can retain the factory rear brake rotors, and installation does not require removing the hub or wheel bearing. ABS also can be retained without issue. 

Construction

Our brackets are designed by professional automotive engineers and manufactured in the USA in our own machine shop.

Each kit features:

• CNC-machined aerospace-grade 6061 aluminum brackets
• Computer-modeled and analyzed design
• Gold-anodized finish
• ARP hardware at the primary knuckle mounting points
• Compatibility with the factory wheel-speed and ABS sensors
• Compatibility with the factory rear brake rotors
• Installation without removing the axle, hub, or wheel bearing

Installation Requirements

Installation requires removal of the factory rear dust shields and mechanical parking-brake components. The factory wheel-speed sensors, ABS functionality, primary brake calipers, and rear brake rotors are retained.

The items installed or applied to vehicles are intended strictly for off-road use only and track vehicles. These modifications may not comply with emissions, safety, or environmental regulations required for public road use under Environmental Regulatory Agency (ERA) laws. It is the sole responsibility of the vehicle owner or operator to ensure adherence to all applicable local, state, and federal regulations. Use on public roads may result in legal penalties or vehicle impoundment. Always verify compliance with local authorities before installation.

We get a large number of custom orders and requests everyday, so as a result it is not always possible for us to keep every item in stock at all times in our warehouse. If you require the item urgently please contact our sales team here to check the stock before you make your purchase.

If you're unsure whether a part will fit your vehicle, feel free to contact us here with your inquiry. Our helpful sales team will reach out to confirm if it's the right match for you.

We offer a flat-rate shipping fee across the continental United States. This excludes Alaska, Hawaii, and U.S. territories. For international orders, additional shipping costs will apply. Please contact us for a quote if you are outside the continental U.S.

Also, feel free to also contact us at ColoradoN5X@Gmail.Com for any other questions.

Not all items are covered by warranty. Items including warranty, will clearly state that there is warranty within the product description. Most of these items will be a standard 1-year warranty against manufacture defects. You, the customer, will be responsible for shipping and handling. We will fix/replace that item with a product that is in working condition if you meet the warranty criteria. Please note that you will be allowed ONLY 1 claim within the year for that product. ColoradoN5X is not responsible for any damage caused during the installation of our products.