M3 Designed Front Bumper E90 Edition Production Year:2009-2011 The ARM N55 Downpipe features

The ARM N55 Downpipe features two O2 sensor bungs to allow for reinstallation of the OEM oxygen sensors

but will require some trimming of the plastic behind the bumper

Hobbs switch is just a simple on-off switch that is normally off and used to trigger an accessory at a set boost point

Catless downpipes are considered a standard upgrade for any F82 M4 owner looking to safely push their S55 engine beyond basic Stage 1 tuning

M3 Designed Front Bumper E90 Edition Production Year:2009-2011 The ARM N55 Downpipe featuresDescription Non LCI: 2005 2008 LCI: 2009 2011 Additional items: tow hook cover, fog light grills and center mesh Build material: polypropylene