dude 2 of my mates got e30s turboed. cosworth engine is good but its a job handling the car on full boost lol!!! they took a different route. one uses standard engine with a t3 on low boost- nice to drive with a punch and easily controllable . the other has low comped engine [ 2.5] with gt30 turbo omex management etc and runs 380bhp ..bigger than a cossie engine so more power and torque.- problem is it goes sidewards everywhere