NEUSPEED 312mm Big Brake Conversion Kit MK4 · 1J · MK1

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If you want big front brakes but don't have a big budget, NEUSPEED's economy upgrade kit is just for you.  The NEUSPEED kit provides everything you need to convert your car to 12.3" (312mm) Audi TT Quattro front rotors and Porsche Boxster 4-piston calipers.

We supply the brake rotors, the NEUSPEED billet aluminum caliper adapters, and custom stainless braided lines.  All you have to do is buy the Porsche Boxster calipers from your local Porsche dealer or dismantler, and brake pads from us or any other Porsche parts supplier.  You've got a complete front big brake kit for under $1200.00.


  • Significant increase in brake-performance
  • Compatible with 4-Piston Porsche Boxster Calipers
  • Billet Caliper Adapters
  • For 17" wheels an up
  • Slotted & Drilled Rotors available

What's Included:

  • NEUSPEED 312mm Big Brake Conversion Kit

Vehicle Fitment

Model   + Drivetrain  
1J Jetta · GLI 2.8L VR6 +
MK1 Beetle 1.8T I4
MK4 GTI 1.8T I4
MK4 GTI 2.8L VR6

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