http://www.jspec.com/border3.html
Ex-mag is a good choice. I would go with the Border 3. I have this on my 84 corolla and it's smooooth. There's also the Greddy SP/MX series. As for the greddy exhausts, they're pretty quiet. I don't think they make the evo for 240's but the last time I heard one, it sounded like a bumble bee.