from what i haveheaqrd form other people is taht the system u is louder. ask deloriant and there is one other guy i think. but dont get me wrong, my tse is pretty loud IMO, and my friends think so too.
. as for remus and supersprint. remus is a company that is in italy or something. and supersprint is kinda like dinan as a company. their stuff costs a lot of money but im sure its high quality. there is an exhaust website from eurocar magazine comparing a lot of these companies... ill try to find it