This video, courtesy of H&R, will inform you on how to measure your gap, so that you know what size spacers will be right for your car. H&R Trak+ Spacers are ...
Well I have 4 steel brackets that came for each orion hcca sub woofer. In
total I have 8 brackets for two subs. In this video clip I demonstrate 1
bracket just for demo Purposes. I hope this helps!