a genuine 300 bhp will cost you a fortune to do it rite mate.

if you stay cvh like i have will take a lot of work,
you will need to ditch the ke for cozworth managment,
steel rods low comp pistons big valve head solid lifters t34 turbo cts box ap clutch ect ect


if you gave your car to a tuner an said give me 300+ bhp your looking at well over 8k

;'( lol