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  1. Spool Tuning 2013-2015 Focus ST COBB Cat-Back Exhaust Install Video

    CJ Pony Parts
    COBB 591100 Focus ST 13-15 3" Stainless CatBack Exhaust System Today we are installing COBB's 3" Stainless Steel Cat-Back Exhaust System on a 2015 Focus ST. One of the first mods most of our Focus ST customers make is replacing the restrictive factory exhaust. COBB is one of the biggest names...