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3" Downpipe with 100 CPI High Flow Catalytic Converterter and ultra-slim flex section.
3" Downpipe with 100 CPI High Flow Catalytic Converterter and ultra-slim flex section.? This is great choice for the Ecoboost Mustang owner who wants increased performance but doesn't wan't to go completely catless. The 100 CPI (cells per inch) metal substrate cataytic converter dramatically increases exhaust flow over the restricive OEM catalytic converter. This is definitely one of the first mods that you should do if you are looking to get the most power out of your Ecoboost Mustang and want to have a catalytic converter.
Features include: