Exhaust Opinions Anyone????

Ok thanks for all that helped me with my intake questions. Now it's time to move one to exhaust. I am looking to spen around 500-550 on my exhaust. My first 2 choices were Tanabe Racing Medalion or HKS Hiper. Which of these do you guys think would be better on a 93 teg ls planning on ls/vtec. I really only care about performance so sound is not a big factor. If anyone has a good idea for my exhaust choice please let me know.

Thanks again guys,
Chris