Fabspeed Motorsport

Fabspeed BMW M5 F90 Primary Sport Catalytic Converter Downpipes


Eliminate the heavy and restrictive factory catalytic converters with straight-pipe, high flowing stainless steel downpipes for maximum power and an exhilarating sound.


Fits all BMW F90 M5 vehicles (2017+)

Replaces the restrictive factory catalytic converters with high flowing 200 cell HJS catalytic converters for increased throttle response, and a more 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

Direct replacement bolt-on complete German catalytic converter assemblies for the stock OEM restrictive catalytic converters

Optimized for maximum performance with NO catalyst generated check engine light, guaranteed

More power that any cat bypass pipe system while complying with emissions and not having a car stink and pollute the environment

CNC precision billet stainless steel inlet and outlet flanges. Fit into “HOT V” on the engine.