i have an rsr catback, but its not full stainless. the piping and canister is "jet black" which is some ceramic coating stuff i suppose which lowers temperature so i removed all of the heat sheilding material under the car (saving weight) except for the parts near the gas tank, obviously. the only stainless part is the tip of the exhaust. makes the catback seem stock. i LOVE that. the tip is also a perfect size, not outrageously big, like the greddy evo, but big enough to notice. the tip is also rolled, not straight like the greddy. that was enough to make me buy it. and the best part.. ITS QUIET :naughty: