Demon Speed Slotted Front Brake Rotors – Porsche 996 Turbo / C4S / 997 Carrera S / 4S

Demon Speed Slotted Front Brake Rotors – Porsche 996 Turbo / C4S / 997 Carrera S / 4S

Demon Speed slotted front brake rotor set for Porsche 996 Turbo, 996 Carrera 4S and applicable 997 Carrera S / 4S models equipped with the 330 × 34 mm iron front brake system.

These rotors are manufactured from high-quality German rotor blanks and slotted to Demon Speed Motorsports specifications as a direct replacement for the original cross-drilled front rotors.

Sold as a matched left and right pair.

Demon Speed Slotted Front Brake Rotors – Porsche 996 Turbo / C4S / 997 Carrera S / 4S

Demon Speed slotted front brake rotor set for Porsche 996 Turbo, 996 Carrera 4S and applicable 997 Carrera S / 4S models equipped with the 330 × 34 mm iron front brake system.

These rotors are manufactured from high-quality German rotor blanks and slotted to Demon Speed Motorsports specifications as a direct replacement for the original cross-drilled front rotors.

Sold as a matched left and right pair.

Slotted Alternative to Factory Cross-Drilled Rotors

The factory Porsche rotors use a cross-drilled friction surface. Under repeated high-temperature track use, cracking can develop around and between the drilled holes.

Demon Speed uses a slotted rather than cross-drilled friction surface, eliminating the drilled holes as potential crack-initiation points while retaining a performance-oriented rotor surface.

This makes these rotors particularly well suited for cars that see repeated track use.

Deep-Slot Demon Speed Design

These aren’t simply standard replacement rotors with shallow cosmetic grooves.

The slots are machined to Demon Speed Motorsports specifications and are designed with sufficient depth to remain functional throughout the usable life of the rotor.

The slot pattern helps continuously sweep the pad surface while avoiding the drilled-hole configuration of the factory rotor.

High-Quality German Rotor Blanks

Demon Speed starts with high-quality German-manufactured rotor blanks and machines them to our slotted specification.

The finished rotors are also zinc coated to help protect non-friction surfaces from corrosion and provide a clean appearance when installed.

Specifications

Rotor Diameter: 330 mm
Rotor Thickness: 34 mm
Rotor Type: Slotted
Finish: Zinc Coated
Position: Front
Quantity: Pair – Left and Right

Porsche Part Number Cross-Reference

99635140904 – Left Front
99635141004 – Right Front

Earlier references may also appear as:

99635140903
99635141003

Fitment

• Porsche 996 Turbo
• Porsche 996 Carrera 4S
• Porsche 997 Carrera S
• Porsche 997 Carrera 4S

For cars originally equipped with PCCB or modified brake systems, verify rotor dimensions and brake configuration before ordering.

Features

• Demon Speed Motorsports slotted front rotor set
• 330 × 34 mm
• High-quality German rotor blanks
• Machined to Demon Speed slot specifications
• Deep slots designed to remain through the rotor’s usable service life
• Slotted alternative to factory cross-drilled rotors
• Zinc-coated finish
• Direct replacement for applicable iron-brake systems
• Ideal for street and track applications
• Sold as a left/right pair