Earthquake Sound R8-SWS Installation Adapter Ring for SWS-8X & SWS-8Xi (Pair)
Suitable for use with Earthquake SoundsSWS-8X andSWS-8Xi. EarthquakeSound is proud to introduce the R8-SWS adapter set to ease the upgrade of the BMW factory speakers to Earthquake SWS Speakers. SWS-8X with the R8-SWS adapter ring installed.