Lexus GS200 Big Brake Kit Upgrade / TTSPORT Evolution ES6
Lexus builds a genuinely capable chassis into the GS200, but the factory brakes are tuned for comfort first — plenty of drivers find the pedal soft and the initial bite vague once they start pushing the car harder. A shop in Hangzhou, Yutou Auto, tackled that on a GS200 with TTSPORT's new Evolution Series ES6 six-piston big brake kit, bolted up behind the car's stock 18-inch wheels.
The goal wasn't a track-only setup — it's a front axle upgrade sized to work with daily wheels and daily driving, while giving the pedal more feel and the system more thermal margin for spirited runs.
Vehicle & Kit Specs
| Item | Specification |
|---|---|
| Vehicle | Lexus GS200, 18-inch wheels |
| Front caliper | TTSPORT ES6 forged six-piston fixed caliper, two-piece forged aluminum body |
| Front rotor | TTSPORT 355 × 32mm two-piece high-carbon, heat-treated rotor with wave-slotted pattern |
| Bracket | Vehicle-specific caliper mounting bracket for the GS200 |
| Pads / lines | TTSPORT high-performance street pads, stainless steel brake lines |
| Hardware | Brake fluid, mounting bolts, and fasteners |
Below is the official TTSPORT spec sheet for the ES6 caliper used in this build.
| Brake Caliper | |
|---|---|
| Series | Evolution Series |
| Model / Application | ES6 |
| Axle Position | Front |
| Piston Count | 6-piston |
| Piston Type | Two-piece heat-insulated pistons with dust boots |
| Piston Diameter | 27 mm × 2 / 32 mm × 2 / 38 mm × 2 |
| Caliper Dimensions | L 294 mm × W 155 mm × H 84 mm |
| Total Piston Area | 50.2 cm² per caliper, all pistons combined |
| Manufacturing Process | Two-piece forged aluminum body |
| Net Weight | 3.95 kg per caliper, without pads |
| Surface Finish | High-temperature gloss coating |
| Recommended Wheel Size | 18 in or larger |
| Recommended Rotor Size | Ø355–380 mm × 32 mm |
| Fitment & Installation | |
| Minimum Spoke Clearance (mm) | 99 |
| 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
- Asymmetric piston sizing (27/32/38mm pairs) evens out clamping pressure front-to-back across the pad, so the rotor sees more uniform brake force instead of the uneven pressure a single piston size can create.
- Two-piece, heat-insulated pistons limit heat transfer into the brake fluid, which helps the system hold a firmer pedal after repeated hard stops instead of going soft as things heat up.
- Compared with the stock setup, the ES6 caliper translates pedal input into clamping force more directly, giving a more linear, predictable feel under both everyday braking and hard stops.
- The kit is sized to clear the GS200's factory 18-inch wheels with no spacers, using TTSPORT's vehicle-specific bracket to keep caliper position correct.
TTSPORT notes this class of kit — a mid-size six-piston front setup — suits mid-to-large sedans, SUVs, and MPVs looking for a meaningful step up from stock without moving to a track-only rotor size.
Installation Gallery
Common Questions
Does the TTSPORT ES6 kit fit the Lexus GS200's factory 18-inch wheels?
What's included in the TTSPORT ES6 kit for the Lexus GS200?
Why does the ES6 caliper use different piston sizes on each side?
Need fitment confirmation? Choose the closest TTSPORT series or send your vehicle, wheel size, and intended use before ordering.