Dodge Challenger Big Brake Kit Upgrade / TTSPORT Classic 8703
The Dodge Challenger wears its muscle-car looks well, but plenty of examples still roll on the factory brake package underneath those aggressive fender lines. This case swaps a Challenger's front brakes for a TTSPORT 8703 six-piston caliper setup, paired with a larger, thicker rotor and stainless lines — a straightforward OEM+ upgrade aimed at giving the car brakes that match its presence.
The car in this build runs 20-inch wheels, which is the wheel size the shop confirmed the TT8703 kit clears before pulling the stock calipers. Sizing the new hardware against the wheel first is the same check any shop should run before ordering a big brake kit — it's the difference between a clean install and a return trip for spacers or a different rotor diameter.
Vehicle & Kit Specs
Here's what went on the front axle of this Challenger:
| Item | Specification |
|---|---|
| Vehicle | Dodge Challenger, fitted with 20-inch factory wheels |
| Front caliper | TTSPORT 8703 forged six-piston front caliper |
| Front rotor | TTSPORT 380mm x 34mm high-carbon heat-treated brake rotor |
| Brake lines | TTSPORT stainless steel brake lines |
Why It Works
The upgrade comes down to two simple mechanical facts: more pistons and more rotor.
- A six-piston caliper clamps down on the pads across more contact points than the factory caliper, which means more even pad pressure and a firmer pedal instead of a mushy one.
- The 380mm x 34mm rotor is larger and thicker than a stock disc, giving the system more swept area and more mass to absorb and shed heat before fade sets in.
- Bigger caliper, bigger pad, bigger rotor — together they add up to more braking force from the same pedal input, which is the whole point of a big brake kit.
Side by side, the difference is visible before you even drive the car: the TT8703 caliper is noticeably larger than the factory unit it replaced, and the rotor fills more of the wheel's inner diameter. More caliper and more rotor is exactly how this class of upgrade earns its stronger, more direct pedal feel.
Installation Gallery
What does the TTSPORT 8703 kit include for the Dodge Challenger?
Will the TT8703 big brake kit fit behind the Challenger's factory wheels?
What's the actual benefit over the stock Challenger brakes?
Need fitment confirmation? Choose the closest TTSPORT series or send your vehicle, wheel size, and intended use before ordering.