Yeah Ken get some electric exhaust cutouts! They are basically an open header dump behind the cat, usually, and you can wire a switch or do it remote from a keyfob. Closed is quiet as stock or Full Open ProStreet noise levels.
Ive been doing some shopping....
QTP seems to have a good setup.
http://www.quicktimeperformance.com/QTEC/index.php
QTP is crap, had them on the Civic till the motor burned out 2 months after buying and they didn't want to endorse there warranty... Get a DMH Performance one, http://www.dmhperformance.com/