Well...if you need a header to muffler exhaust (otherwise known as catback) then i would suggest tanabe hyper medallion or apex i WS/N1. But...since you are going to the muffler shop to get the cat/header put on, what you really need is just an AXLE back exhaust or just a muffler. I'm kind of in the same situation, my tanabe muffler which is about 4 yrs old finally died but the piping is still good. The only axle back system that was half decent i found was the 5zigen fireball. Another choice is to get a apex N1 muffler and weld it on to the piping, i'm probably gonna just weld a turbo Apex N1 muffler onto my tanabe piping.....good luck!