Mitsubishi Outlander Big Brake Kit Upgrade / TTSPORT Classic 5440
The Mitsubishi Outlander's factory brakes get the job done around town, but push the pedal hard and the stock setup feels soft and short on bite — a common complaint on this platform once you start driving it with any enthusiasm. This case swaps in a TTSPORT Classic Series TT5440 four-piston caliper, a 343x28mm rotor, and stainless steel brake lines, all tucked behind the Outlander's stock 18-inch wheels.
Side by side with the stock rotor, the larger heat-treated, high-carbon TTSPORT disc gives the pads more surface to bite into — more contact area means more consistent braking, especially under repeated hard stops.
Vehicle & Kit Specs
| Item | Specification |
|---|---|
| Vehicle | Mitsubishi Outlander, factory 18-inch wheels |
| Front caliper | TTSPORT Classic Series TT5440, forged four-piston |
| Front rotor | TTSPORT 343mm x 28mm heat-treated, high-carbon rotor |
| Lines | TTSPORT stainless steel brake lines |
The TT5440 is a Classic Series piece; here's the full spec sheet for the caliper used in this build.
| Brake Caliper | |
|---|---|
| Series | Classic Series |
| Model / Application | 5440 |
| Axle Position | Front |
| Piston Count | 4-piston |
| Piston Type | Star-profile racing pistons without dust boots |
| Piston Diameter | 38 mm × 2 / 41 mm × 2 |
| Caliper Dimensions | L 276 mm × W 138 mm × H 80 mm |
| Total Piston Area | 49.1 cm² per caliper, all pistons combined |
| Manufacturing Process | Two-piece forged aluminum body |
| Net Weight | 2.65 kg per caliper, without pads |
| Surface Finish | High-temperature gloss coating |
| Recommended Wheel Size | 17 in or larger |
| Recommended Rotor Size | Ø330–345 mm × 28 mm |
| Fitment & Installation | |
| Minimum Spoke Clearance (mm) | 86 |
| Caliper Mounting Type | Radial mount with vehicle-specific caliper brackets |
| Brake Line Fitting Type | Vehicle-specific fittings; caliper-side and chassis-side fittings vary by application |
Why It Works
- The TT5440's two-piece forged aluminum body flexes less than a stock sliding caliper under hard braking, which translates to a firmer, more predictable pedal.
- Stepping up to a 343x28mm rotor puts more rotor mass and pad-contact area to work than the factory disc, helping the system shed heat and hold up better under repeated stops.
- Fresh stainless steel lines replace the stock rubber hoses, cutting down on line expansion under pressure for a more direct pedal feel.
- The kit was built to clear the Outlander's factory 18-inch wheels with no spacers and no rubbing, keeping the stock stance intact.
Every TT5440 kit ships with a vehicle-specific caliper bracket and the hardware needed for a direct bolt-on install — no drilling, no adapters, no guesswork on this Outlander build.
Installation Gallery
Frequently Asked Questions
Does the TTSPORT TT5440 kit fit behind the Outlander's stock 18-inch wheels?
What's included in this Outlander big brake kit?
Need fitment confirmation? Choose the closest TTSPORT series or send your vehicle, wheel size, and intended use before ordering.