[caverman]

IMO you're not going to loose a ton of weight with an aftermarket arm swap. So unless you need the clearance or you're trying to shave every pound you can I would suggest you look at just upgrading to the stock FE4 arms which will mean an FE4 swaybar upgrade. Like mentioned above it's really all depends on what you're trying to do with the car.

Obviously if you call BMR or Sphon they are going to suggest their product over stock. In addition to the people like BMR, you should call someone like JDP Motorsports who sells everything from OEM stuff to BMR to DSE. Tell them what you're wanting to do and see what their suggestion is. They are going to be more of an unbiased vendor versus calling the Mfg directly but getting suggestions and info from everyone is only going to help you make a more informed decision.