PowerStop K1149 Rear Z23 Drilled Slotted Brake Kit for Lexus GS300/IS300/SC430

Vehicle Fitment

• 1998-2005 Lexus GS300 (Base, 3.0L I6, RWD)
• 1998-2000 Lexus GS400 (Base, 4.0L V8, RWD)
• 2001-2005 Lexus GS430 (Base, 4.3L V8, RWD)
• 2001-2005 Lexus IS300 (Base, SportCross, 3.0L I6, RWD)
• 2002-2010 Lexus SC430 (Base, 4.3L V8, RWD)

Fitment Notes

• Rear axle kit only - does not include front rotors or pads
• All fitments are RWD (rear-wheel drive)
• No special modifications required - direct bolt-on installation

Features

• Z23 Carbon-Fiber Ceramic pad compound delivers enhanced stopping power over traditional ceramic pads
• Drilled & slotted vented rear rotors maximize heat dissipation and clear gas and debris from the friction surface
• Low-dust formula validated through on-vehicle third-party testing - 30% less dust on average versus OE
• Dual-layer high-temp rubberized shims provide virtually silent braking
• Silver zinc dichromate plated rotors resist rust and corrosion
• Brake rotor, pad, and hardware engineered together as a matched system
• Includes premium stainless-steel installation hardware and high-temp ceramic brake lubricant
• Bolt-on upgrade - no modifications needed

Specifications

• Kit Coverage: Rear Only
• Rear Rotor Outside Diameter: 12.09 in. (307.00 mm)
• Rotor Construction: Full Cast Iron
• Rotor Type: Vented
• Surface Type: Drilled & Slotted
• Rotor Finish: Silver Zinc Dichromate Plated
• Pad Compound: Z23 Carbon-Fiber Ceramic
• Pad Shims Included: Yes - Dual-Layer Rubberized

Included Components

• 2x Rear Drilled & Slotted Zinc-Plated Brake Rotors
• 1x Rear Z23 Carbon-Fiber Ceramic Brake Pad Set (with rubberized shims)
• 1x Stainless-Steel Installation Hardware Kit
• 1x High-Temperature Ceramic Brake Lubricant

Product Description

The PowerStop K1149 Z23 Evolution Sport Rear Brake Kit is a complete rear brake upgrade for the Lexus GS300, GS400, GS430, IS300, and SC430 - all sharing the same rear brake platform. The drilled and slotted vented rotors reduce heat buildup during demanding driving, while the Z23 Carbon-Fiber Ceramic pads deliver improved stopping power and significantly less brake dust compared to factory pads. The matched rotor-pad-hardware system is engineered to work together for maximum performance and durability.

Dual-layer rubberized shims insulate noise for near-silent operation, and the zinc-plated rotors resist corrosion over time. Everything arrives in one box and installs as a straightforward bolt-on with no modifications required - ideal for Lexus owners looking to upgrade rear braking performance on the GS, IS, or SC platform.