FabSpeed BMW M5 F10 Primary Cat Bypass Downpipes

Eliminate the heavy and restrictive factory catalytic converters with straight-pipe, high flowing stainless steel downpipes for maximum power and an exhilarating sound.                                                                                                                          FEATURES: Fits all BMW F10 M5 vehicles (2011+) Replaces the restrictive factory catalytic converters with a straight-through "straight-pipe" design for maximum power, inceased throttle response, and an aggressive exhaust sound Constructed out of T304L stainless steel with CNC machined flanges and laser cut brackets Manufactured entirely in-house by our precision machine shop at Fabspeed Motorsport Designed to fit seamlessly with the factory exhaust system and are also compatible with any other aftermarket exhaust system that is designed to fit like OEM Includes two downpipes, labeled left side and right side for easy installation, and hardware This product replaces the factory catalytic