Rotor Model: ST-40
Caliper Color: Black
Rotors Size: 355x32mm
Rotor Style: Slotted


StopTech Big Brake Kits give your vehicle that Supercar look and feel, and exceed stock performance in two areas. First, larger rotors increase heat capacity. Second, stiffer calipers and stainless steel lines reduce system compliance.

The key, however, is to increase heat capacity and reduce compliance without upsetting the stock front to rear brake torque ratio. If the brake upgrade you select adds too much front torque (as many do), you reduce your car’s ability to utilize the tractive capacity of all of the tires to the maximum practical extent (even on ABS equipped cars) and you therefore create performance sacrifices. In addition, too many pistons or pistons that are too large will make the brake pedal much more difficult to modulate, which limits a driver’s control of brake input on the race track.

Advantages of StopTech over other brake upgrades:

Shorter Stopping Distances
Better Brake Modulation
Firmer Brake Pedal
Less Brake Fade

Feature Benefit Summary:

Balanced Brake Upgrades with optimum brake bias offer the shortest stopping distance with the best pedal feel StopTech patented AeroRotors with the best airflow available result in better cooling, less fade and longer rotor and pad life The stiffest aftermarket calipers with patented bridge result in better clamping under hard braking and less pad taper Track testing of new applications ensures optimum performance CALIPER TYPES

ST-40 & ST-45 – 4 PISTON CALIPER FOR FRONT & REAR (4 piston kits with 380mm rotors use ST-45 calipers)

Made of Squeeze Forged aluminum alloy
ALL finished parts are 100% leak down and pressure tested to 2500 PSI
ST-40 uses standard FMSI D372 pad (VIEW PAD SHAPE)
ST-45 uses standard FMSI D609 pad (VIEW PAD SHAPE)
Any combination of 8 piston sizes available to match kit to vehicle application
Differential piston sizes minimize pad taper
Dust boots are standard
Weight: 7.94 lb (3.6 kg) unloaded
Same caliper used by top Speed® World Challenge and Grand-Am Cup Teams