might be a big mistake as ive just bought my first impreza which is 255bhp and it would piss on my previous 2 cosworths(stg1+3) and my 350bhp skyline r32 gtr
up to 125mph

think you have to learn to get off the line a bit better(in a Cossie)as a stage1 or 3 Cossie WILL kill a 255bhp Scooby n e day of the week.
your money's WELL safe.