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Cobb Tuning Catback Exhaust BMW 135is 2013 Model Number: 5B1110 View Price This exhaust utilizes a single 3" pipe, straight thru muffler and helmholtz chamber to quiet and reduce resonance of the exhaust gases as they exit your motor. It is unmatched in performance, with OEM fitment, innovative engineering and outstanding craftsmanship. Treat your BMW 1-Series to a COBB exhaust now! Features:3" 304 Stainless SteelCNC Mandrel Bent TubingV-Band Clamp ConnectionsHelmholtz ChamberDual 3.5" Slash Cut TipsFitment:BMW 135is 2013... |