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Brembo 103.9021A Gran Turismo Disc Brake Upgrade Kit

(2014-2016, 2018-2019 Porsche 911 GT3; 2016, 2019 Porsche 911 4.6is/GT3 RS)

Manufacturer

Picture for manufacturer Brembo

Part Number

103.9021A
13 reviews
Sale Price

$2,095.00

1 left at this price

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Usually delivered within 2 days

free shipping

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No Hassle Returns

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Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Brembo 103.9021A Gran Turismo disc upgrade kit is designed for use with OEM calipers, providing enhanced braking performance through larger, high-performance rotors. This disc-only upgrade leverages Brembo's race-proven technology to increase thermal capacity and brake torque without replacing your factory calipers.

Key Features:

  • Designed for use with factory OEM brake calipers
  • Two-piece floating hat and rotor assembly reduces unsprung weight and improves heat dissipation
  • Available in drilled or slotted configurations for improved cooling and wet-weather performance
  • High-performance rotor material provides consistent friction and fade resistance
  • Includes all necessary mounting hardware for seamless installation
  • Fully compatible with ABS and traction control systems
  • TÜV certified for quality and safety compliance

This Gran Turismo upgrade kit delivers professional-grade stopping power for high-performance street driving and track use. The two-piece floating rotor design allows for thermal expansion while maintaining optimal contact with brake pads, resulting in improved modulation and reduced brake fade during demanding conditions.

Note: Proper wheel clearance measurement is critical for fitment. Verify your wheel dimensions before installation to ensure compatibility with the larger rotor diameter.

Products specifications

Fits

2014-2016, 2018-2019 Porsche 911 GT3; 2016, 2019 Porsche 911 4.6is/GT3 RS

Disc Diameter

380

Disc Material

Advanced High Carbon Alloy / Corrosion Resistant Plating

Disc Width

34

Disc Material and Finish

Advanced High Carbon Alloy / Corrosion Resistant Plating

Disc Size and Construction

380x34 2-Piece

Disc to Hat Mounting

Floating D-Bobbin with Anti Rattle Spring

Disc Vane Design

Vented Curved 72 Vane

Front or Rear System

Front

Product Segment

Brembo 2-Piece Discs

Disc Type

Slotted Type-3

great price for my ebc brakes no one has it cheaper than this site for my audi a6....and shipped it out next day...great service.....A++++

Talked on the phone first and they were very helpful. Website was very easy to use.

easy to use site.

Am happy with price, lower than anywhere else. Product is perfect and shipping was fast. Had to call because website was down while price increases were uploaded, cost an extra $20 but still worth the savings. Would definitely buy from again.

Love autoplicity

Easy website navigation. Fast checkout. Clear and concise pricing!

Great transaction at a great price.

i was skeptical about this site but after reading the reviews and them having the lowest price i could find for my part i pulled the trigger and wasn't disappointed. fast shipping and low prices with great customer service will shop with them again if they have what im looking for.

Easy to order

easy to find what i needed

great place to shop!!

The Westin T-Max winch cover seems to be of good quality and it fit my off brand winch. It would be nice if it came with the bindings though. Good product.

Fast, Hassle free and easy

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