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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).
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| 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!
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Remove the brake line. |

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| 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.
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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. |
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| Insert the brake pads, then the clip.
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A top look at the caliper without brake pads.
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| Slide in the two pins to secure the pads.
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The final assembly of the brake pads.
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| The strut and caliper are ready for the stainless brake lines.
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Connect the stainless brake line to the caliper. The torque spec for the brake hose to caliper banjo bolt is 132-180 in-lbs.
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| The final product.
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Top-down view
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Rear brakes (stock) with the Prodrive Suspension
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