Amazon.com: FRAM Extra Guard CA10626 Replacement Engine Air Filter for Select Cadillac CTS Model, Provides Up to 12 Months or 12,000 Miles Filter Protection : Automotive
CTS TURBO AIR FILTER 3.5″ FOR CTS-IT-270/270R/290/300 | Park Auto Motorsports
CTS Turbo SAI breather filter, CLIP-IN style - CTS TURBO
CTS Turbo Billet Oil Filter Cap – Track Tec
CTS Turbo air filter for 2.0 TFSI and 2.0 TSI Intake Kits
CTS B-Cool Billet DSG Filter Housing - Awesome GTI - Volkswagen Audi Group Specialists