Wilwood 140-17655-R D31 Rear Disc Brake Kit with SRP Drilled & Slotted Rotors Red Caliper

The Wilwood D31 Rear Brake Kit delivers a high-performance, direct-bolt-on brake upgrade engineered for Porsche 911 models equipped with "M" 3.00" OEM rear calipers. Designed around Wilwood's forged aluminum D31 direct-mount calipers, this kit offers an exceptional combination of strength, reduced unsprung weight, and high-efficiency brake clamping force.

D31 Caliper Features:

• Lightweight forged aluminum body — weighs just 4.1 lbs per caliper
• Machined stainless-steel pistons for corrosion resistance and long service life
• 2-piston design with 3.00" mounting centers, height, and offset matching the OEM Porsche 911 "M" caliper bolt pattern — no bracket modifications required
• Red powder coat finish — also available in Black; special-order options include Yellow, Type III hard anodize, and custom powder coat colors (extra charge)
• Loaded with BP-10 compound brake pads for high-performance street and track use

Rotor Specifications:

• 11.42" diameter OEM replacement rotor size
• Available in 0.79" or 0.95" thickness
• SRP directional drilled and slotted rotor configuration for improved heat dissipation and bite (this kit)
• Black e-coat finish for corrosion protection on non-swept rotor surfaces

Kit Includes:

• D31 forged aluminum calipers (Red powder coat) — 1 pair
• SRP drilled and slotted rotors — 1 pair
• BP-10 compound D31 brake pads — 1 set
• DOT-compliant stainless-steel braided brake hoses

This complete rear brake conversion kit is a true bolt-on solution for Porsche 911 "M" strut applications, providing track-proven stopping power with a significant weight reduction over stock components. The stainless braided hoses improve pedal feel and meet DOT compliance standards.