No your wrong and a troll. Crown is $100 for a set if four and synergy is $200 for a set of four. Myself and other good friends just went through this. They bought the crown and I got the dynatrac which is better then both.
I came across the Dynatrac they seem to be the way to go just by looking at them, I can't remember price difference but you usually get what you pay for.
I got a stupid question though, if my stock ones are damaged by welding on the gussets what will be the symptoms if any?
If they are damaged I want to replace them sooner than later and would like to know what to look for.