either. I refuse to ride in one until I have the dough to convert if I can't stand not having turbos after riding in one. Riding in my slow DD 90% of the time makes my NA feel crazy fast! {ignorance is bliss} have to agree with stockplayer on the boost, it does look violent [almost everybody in our club here is TT so I get to see them boost all the time] it really just makes the car squat and lunge foward really hard (looks fun)