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.

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

Fully forged aluminum construction

ALL finished parts are 100% leak down and pressure tested to 2500 PSI

ST-40 uses standard FMSI D372 pad

ST-45 uses standard FMSI D609 pad   

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

 

 ST-22 - 2 PISTON CALIPER FOR REAR KITS

Fully forged aluminum construction

All finished parts are 100% tested to a pressure of 2500 PSI

Uses standard FMSI D961 Pad  2 piston opposed design

May be added to cars with existing front StopTech kits

Piston size adjusted for the application, just like our front calipers

Dust boots are standard

Weight: 4.4 lb (2 kg) unloaded