Hi all, I'm in now way a boy racer for starters. I have recently become interested in improving the shed of a focus (mk1 Zetec SE, Lefthand drive) I've been driving for the last two years. In this time it has never been serviced, passed 2 MOT's and noticed it was getting horrible to drive. I decided to look at how to make it a little better and over the last few days I've changed the oil, oil filter, air filter and spark plugs. This was all after changing the bonnet as the paint had been ruined by bird crap while the car was sat in Rome for three months under a tree. Now the car is running a lot smoother and seems to be doing better on fuel, I am looking at other ways to improve performance without it sounding like a typical boy racer car. I've looked at air induction kits as they seem to say they improve performance throughout the RPM range and as long as you don't drive like a boy racer it's good for fuel consumption. Is there such thing as a quiet induction kit? They all seem to say they give a louder throaty sound and I'm kind of trying to avoid that. Also if anyone has any advice on how to improve performance in general it would be much appreciated. Cheers, Mike.