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2010 CTS4 3.6L AWD Sportwagon
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Discussion Starter #1 (Edited)
CTS J55 Frt Rotors.JPG 1 pair of R1 Concepts, front, cross-drilled (and chamfered), high-carbon steel rotors for CTS with J55 (heavy-duty) brakes (13.6 in./ 345mm diam.) Hole pattern is directional (L&R sides). Cryogenically-dipped for durability & hardness. 4,000 miles on them and surfacing swirl marks barely gone. Had some brake squeal using Porterfield R4S pads and reverted to same rotors without cryo-dipping. Brake squeal continued until I used copius amount of disc brake quiet goop and too lazy to reinstalled cryo-hardened rotors.
$150 dollars or best offer.
 
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