GKTech Nissan R33/R34 Skyline Brake Master Cylinder Stopper

The GKTech Brake Master Cylinder Stopper for RHD R33 and R34 Skyline models is designed to reduce unwanted firewall flex that occurs during hard braking. Under load, the firewall can deflect slightly, causing a soft or inconsistent brake pedal feel. This bolt-on bracket braces the brake master cylinder against the strut tower, giving you firmer, more responsive braking—especially when using upgraded brake systems or in high-performance driving scenarios.

Built from laser-cut steel with CNC-machined components, the stopper is powder-coated for durability and installs easily using existing mounting points.

Key Features:

• Reduces Firewall Flex: Stabilizes brake pedal feel under hard braking

• Improves Brake Modulation: More consistent response for track or street use

• Bolt-On Design: No cutting or drilling required

• Durable Construction: Laser-cut steel and CNC components with powder-coated finish

Specifications:

• Material: Steel (laser-cut and CNC-machined)

• Finish: Black powder coat

• Install Time: ~30–45 minutes

Compatibility:

• Nissan R33 Skyline (RWD only, RHD)

• Nissan R34 Skyline (RWD only, RHD)
  Not compatible with GT-R (AWD) or LHD models

What’s Included:

• (1) Brake master cylinder stopper bracket

• (1) Hardware kit

Notes:

• Designed specifically for RHD chassis

• Works best when paired with braided brake lines and upgraded pads/rotors

• A simple but effective upgrade for track day cars, drift builds, or spirited street setups

Lock down your braking consistency with GKTech’s R33/R34 Master Cylinder Stopper—because precision starts with a solid foundation.