i had my 1.5 dyno'd out of curiousity to see what power it actually had and too see how it was running (main reason to see what bhp it said it had) and i got 100.5bhp at the fly and all i'v done is cheap air filter and full stainless exhaust. i had changed the oil and filter around 1k previously and the plugs around 10k since. i didn't think that was too bad for a 1.5. that was also done on a dyno dynamics dyno.