Audi Q3 Big Brake Kit Upgrade / TTSPORT Classic 6410
The Audi Q3 looks the part with its coupe-like roofline, but the brakes underneath are still just compact-SUV hardware. On a car that gets driven with some enthusiasm, that means a pedal that goes soft before the tires are anywhere near their limit. This Q3 owner addressed that directly with a TTSPORT TT6410 big brake kit — a forged four-piston front caliper paired with a 380mm curved-vane rotor, installed behind the stock 19-inch wheels.
The upgrade covers the front axle: a TT6410 forged four-piston caliper, a 380x32mm high-carbon heat-treated rotor, and a stainless brake line to replace the factory rubber hose. Nothing here required non-stock wheels — the whole kit was built to clear the Q3's existing 19-inch set.
Vehicle & Kit Specs
| Item | Specification |
|---|---|
| Vehicle | Audi Q3, 19-inch factory wheels |
| Front caliper | TTSPORT TT6410 forged four-piston caliper, split (two-piece) casting |
| Front rotor | 380x32mm high-carbon heat-treated curved-vane rotor |
| Lines | TTSPORT stainless steel brake line |
Why It Works
A split (two-piece) forged caliper body is stiffer under clamping load than a stock single-piece caliper, so less of the pedal's effort gets absorbed by flex before it reaches the pads. The TT6410's larger piston area also increases the contact patch between pad and rotor, which translates directly into stronger, more consistent braking force for the same pedal input.
- Forged, split-casting caliper body resists flex for a firmer pedal
- 380x32mm rotor adds mass and heat capacity over the stock disc
- Sized to clear the factory 19-inch wheel — no spacers needed
The rotor's curved-vane pattern also uses centrifugal force to fling dust and debris outward off the friction surface as the wheel spins, helping keep the rotor face cleaner between pad applications.
Installation Gallery
Fitment FAQ
What wheel size does this TTSPORT TT6410 kit fit on the Audi Q3?
What's included in this Audi Q3 big brake kit?
Need fitment confirmation? Choose the closest TTSPORT series or send your vehicle, wheel size, and intended use before ordering.