AIRTEC Motorsport Downpipe Sports Cat for BMW G Series – M2, M3 & M4 BMW 320I This SMD unit fully replaces

This SMD unit fully replaces both the bulb and lens

You must already be using CEUK 36SMD Front Panels

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AIRTEC Motorsport Downpipe Sports Cat for BMW G Series – M2, M3 & M4 BMW 320I This SMD unit fully replacesBy replacing the restrictive primary catalytic converters located in the original downpipes with specially designed high flow sports cats, back pressure is reduced, which effectively improves the engines breathing by allowing it to expel gases more quickly. This in return means faster throttle response, increased power output and a more aggressive exhaust note. Complete with replacement fitting kit, the downpipes will mate to a standard or aftermarket