kiwi hit it on the spot. i honestly find my ct20 to spool faster than my ct26. the ct26 had a kind of kick then fell flat around 5500. the ct20 however, is a constant pull all the way to wherever i shift at. anyways, a ct20b alone won't get you close to 300. unless u already have a gen3 motor. but if ur stuck with a gen 2 like me, id definitely need some 264s and a stand alone. ohh, i also believe the exhaust turbine is also ceramic. there have been many tales of them disintegrating on people, but if u take good care of yours (turbo time, keeping your car lubricated, proper boost controlling) then there shouldnt be any problem.