18Z 6-Pot Front Big Brake Kit – VW Golf MK4 / Audi A3 8L / TT MK1

Transform the braking performance and appearance of your VAG build with the SF-Tuning 18Z 6-Pot Front Big Brake Kit.

Built around the proven 18Z 6-piston caliper, this conversion delivers a substantial increase in braking capability while giving your car the unmistakable presence of a genuine big brake setup.

Designed for the VW Golf MK4 / PQ34 platform, our conversion package brings together the calipers, mounting hardware and braided brake lines required to create a properly engineered upgrade for fast-road, modified and show builds.

Why Choose the SF-Tuning 18Z Kit?

• Powerful 6-piston braking – A substantial upgrade over the original factory braking system.

• OEM+ performance – Large multi-piston calipers combined with high-quality performance braking components.

• Complete conversion package – Purpose-designed mounting brackets, high-tensile hardware and braided brake lines included.

• Built around your requirements – Choose your caliper colour, discs, pads and logo options.

• Engineered by SF-Tuning – Developed specifically for the platform rather than assembled as a generic universal brake package.

• Road or show ready – Serious braking hardware with the visual impact to match.

Kit Specification

18Z 6-Piston Calipers

Supplied in your chosen finish:

Red | Yellow | Acid Green | Custom Colour | Unpainted New Aftermarket

Our 18Z calipers provide the large-pad area and multi-piston configuration that have made this platform one of the most popular big brake conversions for performance VAG applications.

SF-Tuning Mounting Hardware

The kit includes steel caliper mounting brackets engineered to correctly adapt the 18Z calipers to the MK4/PQ34 platform.

High-tensile mounting bolts and the required brake pad fitting hardware are supplied as part of the conversion.

Braided Brake Lines

Supplied with HEL Performance or Goodridge braided brake hoses to complement the upgraded braking system and provide a more direct, consistent pedal feel.

Disc & Pad Options

Build the package around how you use your vehicle, with a choice of braking components including options from leading manufacturers such as:

MTEC | EBC | Brembo | Ferodo and more

Whether the car is a daily driver, fast-road build or show car, we can help you select a disc and pad combination suited to your requirements.

Vehicle Fitment

Suitable for compatible PQ34-platform applications including:

• VW Golf MK4

• Audi A3 8L

• Audi TT MK1

• SEAT Leon MK1

• Skoda Octavia MK1

Vehicle specifications can vary, so please confirm your exact model and existing brake setup before ordering if you are unsure.

⚠ Wheel Clearance – Please Check Before Ordering

18" wheels or larger are typically required.

Some 17" wheels may provide sufficient clearance, but wheel diameter alone does not guarantee fitment. Internal spoke profile, offset and wheel design all affect caliper clearance.

This conversion commonly requires approximately 20–25mm of wheel spacing, depending on the wheel design and offset.

Wheel clearance must be checked before ordering or installation.

If you're unsure, contact SF-Tuning with your wheel specification and we can help you determine the most suitable setup.

Passion. Performance. Prestige.

SF-Tuning brake conversions are developed for enthusiasts who want more than simply a larger caliper.

Combining carefully selected braking components with purpose-designed conversion hardware, our 18Z package delivers the performance, appearance and engineering your VAG build deserves.

Upgrade your brakes. Transform the look. Stop with confidence.