ya dont have to drive around town like a dickhead if the cops dont like a car cause its nice they always try to pic it. most of the new cars do skylines do wrx do i can keep going on,if we didnt need one why would they put one on cars from the factory? yeah a external wastegate is way louder then any B.O.V i have got a hks 50mm wastegate on my car and that is loud as all f**k and the cops dont look at it but when my B.O.V does they do its weird the cops need to go to school and learn a bit about more about turbo cars. he FLOODY what kind of car do ya drive?