I have heard that SCCA is going to allow aftermarket rear sway bars in stock class. There are a lot of choices out there and was looking for advice on purchasing one.

I am running a OE sport suspension with Enkie RFP-1 wheels and Dunlop Star Specs. It is also my daily driver so I'll need something that can handle the roads.

Any suggestions or explanations of what factors I am looking for?

 

Any 19mm bar will do the job. Find the best deal and go with that.