Ok lads and lassies im looking at getting a new exhaust system for the rvf , i have liked the twin stack but now have seen the sp1 style system , i want to get the exhausts up high not down near the chain and sprocket if ye know wat i mean , so which one would ye go for twin stack or sp1 style ....cheers ....ps i dont know how to put pictures up of the bike but i'll try get some up