Installing the STi 4-pot Brakes

Stage 1: The Suspension
Stage 2: The Brakes
Stage 3: The Brake Booster

Stage II: The Brakes

The STi brakes are an easy upgrade for your car. When combined with a single-stage booster and stainless steel brake lines, the result is very predictable and firm brake pedal.

The STi rotors (11.7 inches, right) give an extra inch of diameter over the stock 10.7 inch rotors. The STi brakes weigh approximately 22 pounds, compared to the ~20 pound stock units (bathroom scale measurements). STi brakes compared to stock
Remove the wheel The first step is to remove the wheels. Two bolts hold the brake caliper. Remove them and pull the rotor off the hub. You can see the caliper hanging by the brake line in this photo. Don't let your calipers hang by the brake lines if you intend to reuse them!
Remove the brake line. Remove the brake lineRemove the brake line
Slide on the new rotor Simply slide the new rotor onto the hub. It fits perfectly. Secure the caliper with the two caliper bolts. The torque spec for the front caliper support bracket bolts is 51-65 in-lbs.
Now, assemble the brake pads. "The brakes pads assemble with the clips away from the direction of rotation and the outer pad shim is the solid one. The glue is to be spread on the outer pad shim on the pad side of things so the two shims, slotted and solid are resting in the paste." -- Mike Shields. Brake pad assembly
Insert brake pads. Insert the brake pads, then the clip.
A top look at the caliper without brake pads. A top look at the caliper without brake pads.
Slide in the pins Slide in the two pins to secure the pads.
The final assembly of the brake pads. Final brake pad assembly
Ready for brake lines. The strut and caliper are ready for the stainless brake lines.
Connect the stainless brake line to the caliper. The torque spec for the brake hose to caliper banjo bolt is 132-180 in-lbs. Connect the stainless lines to the caliper
The final product.
Top-down view Top-down view 1 Top-down view 2
Rear brakes (stock) with the Prodrive Suspension Rear brakes with the Prodrive Suspension


Next: Part 3, The Brake Booster


Stage 1: The Suspension
Stage 2: The Brakes
Stage 3: The Brake Booster

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