back boxes for 1997 sport?
 

which is the best make of back box to produce the best sound on a 1997 sport? or is there any thing else i can to to improve it, ive got 1 decat coming off the down pipe, i did have two but changed it back as it made it sound rough and raspie, wasnt a nice note that it produced? but i feel it could still sound abut more meaty?

many thanks, Lucy.