i had an 84 rz350,i put 2 dg silencers on it from 2 cr 250s[actually looked really good too!] it looked and sounded like a large bumblebee,i loved that bike! in fact i was at a local bike shop and guys there started talking bout thier newest and latest $10000 bike,i mentioned the little ol rz everyone laughed,the owner overheard me,and started saying how rz/rd's is the reason he started in the bike buisness.that got thier attention,if you look at that bike close,i think its way advanced for its time?? if i was still into street bikes,id have one for sure[with the correct exhaust...and full fairing!]