Cadillac CT5 Big Brake Kit Upgrade / TTSPORT Classic 9040

The Cadillac CT5 backs up its aggressive styling with a 2.0L turbo-four making 237 horsepower and 350 Nm of torque — Cadillac didn't water down the powertrain to hit a price point. But stock brakes on cars like this are built for daily commuting, not for repeated hard stops. This build swaps in a TTSPORT TT9040 big brake kit to give the CT5 stopping power that matches its motor.

The kit swapped onto this CT5 pairs a TT9040 six-piston forged caliper with a 355x32mm high-carbon heat-treated rotor and TTSPORT stainless steel brake lines — all fitted behind the car's factory 18-inch wheels with no spacer needed.

Vehicle & Kit Specs

The TT9040 caliper mounts up with a vehicle-specific bracket that sets the caliper at the correct offset for the CT5's factory rotor location — no spacers, no trimming. The split forged body keeps the caliper stiff under clamp load while shaving weight versus a cast piece.

Why It Works

• The TT9040 caliper's split forged construction cuts weight versus a cast unit while keeping the rigidity a fixed caliper needs to resist flex under hard braking, which is what a firm, predictable pedal comes down to.
• The larger 355x32mm rotor gives the system more mass and surface area to absorb and shed heat, which is the direct answer to fade on a car with this much power on tap.
• The high-carbon heat-treated rotor material stabilizes the friction coefficient and resists crack formation, so the disc holds its shape better under repeated heat cycles instead of warping and inducing pedal vibration.
• The whole kit clears the CT5's factory 18-inch wheels, so there's no spacer or aftermarket wheel needed to make the fitment work.

Installation Gallery

Frequently Asked Questions