GKTech S14/S15 Silvia Brake Master Cylinder Stopper - RHD

The GKTech Brake Master Cylinder Stopper for RHD S14 and S15 Silvia models is designed to reduce master cylinder firewall flex during hard braking. Under aggressive pedal pressure—especially with upgraded pads or big brake kits—the firewall can flex, leading to a soft or inconsistent brake pedal feel. This stopper braces the master cylinder against the strut tower, eliminating unwanted movement and delivering improved pedal firmness and feedback.

Made from CNC-machined and laser-cut steel, this bolt-on bracket is built to handle the stress of racing and spirited street driving alike.

Key Features:

• Reduces Firewall Flex: Improves brake pedal consistency and response

• Bolt-On Fitment: Installs easily with basic tools—no cutting or welding required

• CNC-Machined & Laser-Cut Steel: Strong, durable, and precision-fit for S-chassis

• Track-Tested Performance: Ideal for drift, grip, or daily driver upgrades

Specifications:

• Material: Laser-cut steel bracket with CNC-machined stopper

• Finish: Black powder coat

• Install Time: ~30–45 minutes

Compatibility:

• Nissan S14 Silvia (RHD only)

• Nissan S15 Silvia (RHD only)
  Not compatible with LHD chassis

What’s Included:

• (1) Brake master cylinder stopper bracket

• (1) Hardware kit

Notes:

• For use with RHD vehicles only

• Works best with upgraded brake systems or firmer master cylinders

• Can be paired with GKTech braided lines and BBK upgrades for full braking improvements

Dial in your pedal feel and build confidence under braking with GKTech’s RHD Brake Master Cylinder Stopper—because when you press the pedal, your firewall shouldn’t be part of the travel.