Ridetech Poly or Heim Ends
 

Looking at the Ridetech Rear Suspension system.
What are the advantages and disadvantages of the upgraded Heim Ends.
Is it worth the $200.00

If you are going to actively chase autocross and road course events, its worth the money. The kevlar lined heim ends allow less bind in roll [when cornering] and have little if any increased harshness. They stay tight and quiet for tens of thousands of miles.
If you're a cruiser, the poly is just fine. There is no difference in strength so no need to be concerned about that.