Pro-System Porsche 911 RSR / 930-Style Complete Front & Rear Brake Kit | 1975–1989

THE RSR LOOK. KEEP YOUR FUCHS. GET THE COMPLETE BRAKE SYSTEM.

Period-correct 917/RSR-style finned calipers. Proven installations beneath 15-inch and 16-inch Fuchs wheels. This is a complete four-corner brake kit, including four calipers, Pro-System two-piece front and rear rotor assemblies, aluminum hats, hardware, brake lines and pads. It is the vintage Porsche look, backed by an integrated braking package rather than a collection of individually sourced components.

(Looking for front or rear only?  Just contact us)

What you get in this kit: a complete front-and-rear system, not just a set of calipers. The optional parking-brake accommodation adds $485. Both 3.0-inch and 3.5-inch rear mounting configurations are available to suit different 911/930 builds.

For 911 SC hot rods, 3.2 Carrera backdates, RSR-inspired street cars and vintage track builds, this gives enthusiasts a compelling alternative to locating and rebuilding scarce original Turbo brakes. Wheel fitment is vehicle- and wheel-specific: successful installations under 15-inch and 16-inch Fuchs do not guarantee clearance with every Fuchs wheel, offset, spacer or suspension arrangement; check exact fitment before ordering.

Only need the calipers? We also offer a separate front-and-rear RSR-style four-caliper set designed for use with compatible stock rotors. That caliper-only listing does not include rotors, hats, pads or brake lines.

A Complete, Four-Corner RSR-Inspired Brake Package

Not just calipers. Each kit includes a complete set of four RSR-style calipers, front and rear two-piece rotors with aluminum hats, rotor attachment hardware, brake lines and brake pads. Pro-System reports that its rotors and supplied pads are pre-bedded, and that each caliper is individually pressure tested before shipment.

• Classic finned appearance: an authentic motorsport-era look suited to vintage and backdated 911 builds.
• Four-piston calipers on both axles: 38mm pistons in front, 30mm in the rear.
• 304mm ventilated rotors: 32mm thick front and 28mm thick rear, with 48 cooling vanes each.
• Serviceable two-piece construction: replace worn rings separately from compatible reusable aluminum hats.
• Familiar pad shape: accepts the original RSR/930-style pad profile, with compound choices for intended use.
• Made in the USA: Pro-System's documented caliper construction, high-temperature seals and motorsport-focused engineering.

Engineered for the Air-Cooled Porsche

RSR-Style Four-Piston Calipers

The finned aluminum-alloy caliper housings are built for heat-intensive use. Front calipers feature four 38mm pistons; rear calipers feature four 30mm pistons. Pro-System specifies high-temperature seal materials, in-house brake dynamometer testing, and interchangeable service parts with Porsche 930 calipers. Each caliper is listed at approximately 7 lb.

Ventilated Two-Piece Rotors

Both axles use Pro-System two-piece rotor assemblies with replaceable iron rings and aluminum hats—not a one-piece disc substitution. The 304 x 32mm front and 304 x 28mm rear rings each use 48 ventilation vanes. Two-piece design simplifies future ring replacement when the hat and hardware remain serviceable.

Built Around the Correct Rear Mount

BRK.200549 — 3.0-inch rear lug spacing: the short-lug rear-caliper option for appropriate standard 911 trailing-arm configurations.

BRK.200548 — 3.5-inch rear lug spacing: the long-lug rear-caliper option for appropriate 930-style trailing-arm configurations.

Fitment advisory: The supplied specification identifies 1975–1989 Porsche 911 RSR applications, but not every 1975–1989 911 has identical struts, trailing arms, hubs, master cylinders or parking-brake hardware. Confirm front 3.5-inch caliper mount spacing, rear mount spacing, rotor offset, hydraulic compatibility and wheel/barrel clearance before purchase. Parking-brake accommodation is available as a selectable $1,600 upgrade; select Yes when required and verify compatibility with the vehicle's parking-brake configuration. Installation may require application-specific adjustments.

Technical Specifications

What's in the Kit

• Left and right front RSR-style four-piston calipers
• Left and right rear RSR-style four-piston calipers in selected mounting configuration
• Left and right front and rear Pro-System two-piece rotor assemblies, hats and rotor hardware
• Brake lines and front/rear pads
• Pro-System installation and torque specifications

Parking-brake accommodation: select No for the standard kit or Yes for the $1,600 additional option. Confirm the exact parking-brake hardware and compatibility before installation. Rotor hardware specification: 10 bolts per rotor, 26 ft-lb with red threadlocker per supplied catalog; follow the current instructions supplied with the kit if revised.