mx exuast is shitty! i am going to sell my exuast in a couple weeks lemme know if your interested. it will be half the price of that greddy. (greddy sp catback piping with an hks hi power muffler) its a good set up, 60 mm all the way through.
throttlebodypower.com does really good work, they have good customer serivice and it won't cost you near the price of str jg etc. i have one of thier t.b.'s and it is the shit
one more thing i am going to be selling my intake manifold and fuel rail if you are interested you could have the manifold match ported to the t.b.... that will really let you car breath.... its will be cheaper then the name brand and it works