HKS used to make one, but they discontinued it for the '87-88 cars. 
I've been looking for one for a long time, and finally found it. I paid around $75-$100 for it, and it's not even in that nice of shape.
I've been looking for one for a long time, and finally found it. I paid around $75-$100 for it, and it's not even in that nice of shape.