Vehicle Fitment

• 1986–1989 Mazda RX‑7 (Base, GXL, GXL 2+2, SE, SE 2+2, Sport, GTU, GTUs, Turbo)

Features

• Direct‑bolt rear kit—no modifications needed
• GG‑rated Yellowstuff high‑friction pads for street/track use
• GD series vented, dimpled + slotted rotors for enhanced cooling
• Thermic Black Geomet anti‑rust coating
• Brake‑In™ red adhesive pad surface for fast bedding
• Pads pre‑shimmed & chamfered for OEM‑quiet performance
• Precision balancing reduces run‑out and vibration
• Matched pad/rotor combo engineered for rear axle load

Specifications

• Position: Rear
• Rotor diameter: 273 mm; Thickness: 20 mm; 5‑bolt vented GD rotors
• Pad height: 54 mm; Center bore: 66 mm; FMSI pad code: D332
• Pad material: aramid fiber; Rotor: cast iron with Geomet coating
• Coating wears off after ~10–20 stops during bedding

Included Components

• 2× rear Yellowstuff S5 pads (LH & RH)
• 2× GD vented, slotted + dimpled rear rotors
• 1× packet of caliper lube grease

Product Description

The EBC S5KR1377 rear brake kit pairs GG‑rated Yellowstuff pads with GD series vented, dimpled and slotted rotors to deliver remarkable stopping power for 1986–1989 Mazda RX‑7 models—including Turbo, SE, GTU and base trims. This is a direct bolt-on upgrade, requiring no modifications, ideal for performance street drivers and track enthusiasts seeking improved fade resistance and thermal management.

Rotors measure 273 mm in diameter and 20 mm thick, with precision balancing and Thermic Black Geomet coating for corrosion protection. The included Brake‑In™ red pad coating accelerates bedding-in, while factory-installed shims and chamfers ensure silent, vibration-free operation. This kit includes pads, rotors, and caliper lube for a complete rear axle upgrade.

Fitment thoroughly verified via at least two trusted sources (BuyBrakes, SummitRacing, NAPA) confirming compatibility with all RX‑7 trims listed (Base, GXL, GXL 2+2, SE, SE 2+2, Sport, GTU, GTUs, Turbo) through 1989. No documentation supports fitment beyond 1989, therefore 1990+ model coverage is unconfirmed. This kit is axle‑specific; upgrading front brakes separately is essential for balanced braking performance.