135i & 335i Dual Caliper Bracket Kit

BMW E82/E9X Non-M Dual Caliper Bracket Kit

The original BMW dual-caliper solution - U.S. Patent No. 11,015,667

The easiest and least intrusive way to add a true standalone hydraulic handbrake system to your BMW. Unlike an inline hydraulic handbrake, a dual-caliper setup keeps the factory rear braking system completely separate. This maintains consistent brake bias and pedal feel while giving the handbrake its own dedicated calipers.

With this kit you can install a hydraulic handbrake to do epic drifts just like FD driver Micah Diaz does on Hoonigan using our products! Seen [HERE] Yea, we miss old Hoonigan too...

Watch an install video [HERE]

Our system retains the factory primary brake calipers, rotors, and ABS sensors for completely normal brake operation.

Why Choose SLG?

Many competing kits rely heavily on the small factory dust-shield mounting points. Our brackets are designed to spread the load across stronger areas of the trailing arm and knuckle.

Each version is designed specifically for its matching BMW knuckle and uses additional machined surfaces and mounting points to reduce stress on the hardware. The result is one of the strongest dual-caliper systems available.

Vehicle and Caliper Fitment

E82 135i and E9X 335i versions are designed for:

• Wilwood GP320 four-piston calipers
• Factory rear brake rotors
• Factory ABS and wheel-speed sensors

When the optional Wilwood calipers are selected, the correct brake pads are included.

Select the correct vehicle version when ordering, as BMW used different rear hubs and rotors across the E8X and E9X platforms.

Optional Hydro Hose Kit

Complete the installation with our optional HEL Performance hydraulic hose kit. The kit eliminates the need to piece together generic hoses and fittings and is designed specifically for dual-caliper hydraulic handbrake installations.

Features include:

• HEL Performance stainless braided hoses
• Swivel fittings where possible for easier routing
• Custom bleeder-banjo fittings
• Lines for both rear secondary calipers
• Fittings for connecting to the handbrake master cylinder

The custom bleeder-banjo fittings keep the installation compact while maintaining a proper high-point bleeder location.

Add the optional calipers, included pads, HEL hose kit, and your choice of hydraulic handbrake for a nearly complete system.

SLG Dual Caliper Features:

• CNC-machined aerospace-grade 6061 aluminum
• Gold-anodized finish
• Premium ARP mounting hardware
• No axle, hub, or wheel-bearing removal required
• No permanent trailing-arm modifications
• Designed and manufactured in the USA

Installation Requirements

Installation requires removal of:

• Factory rear dust shields
• Factory parking-brake shoes and hardware

Installation does not require removal of:

• Rear axle
• Wheel hub
• Wheel bearing
• ABS sensor

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.