Focus S performance options?

[Dazedconfused]

Hi gurus,

I am in the deliberation stage of grabbing a new Focus, and as much as one part of my brain really wants an ST, the practical side of me reminds me, I won't use it to it's capacity, so I'm now contemplating a manual 2013 S.

While I found the ride a tad hard in the ST for how I'd typically drive the car, I didn't mind the S. Sadly I also found the seats a bit too wrapping.

I guess my biggest question is what options do I have to improve the performance of the 2.0l NA engine in the S?

Are there tune options for that engine? Someone suggested a new filter set up, so any advice there would be greatly appreciated. Lastly I suppose there are exhaust options?

125kw in a car that size/weight, even with the manual gearbox is a little on the underpowered side as far as I'm concerned. I like the Focus for it's style and tech, and truthfully I'm having a hard time finding the compromise. If I can make a few tweaks, get the car at the right price, and get the response/performance up a bit, I think I'll be happy with that.

Any thoughts/advice on my options would be very much appreciated.

Thanks guys,
D