Absolutely nothing, but have had to replace the brake pads and discs on the front.
The performance on these cars can be vastly improved by fitting a free flow air filter such as a K&N. With one fitted the engine revs so much more freely. They only cost about 50 quid and last the lifetime of the car.
I also have the same model, I have also recently replaced the front disks and pads!!! LOL - And I also have a piper-cross air filter kit sitting on a shelf in my garage!!! Can anyone tell me if after fitting this - if the mixture or anything will need to be altered with a computer??? And are they easy to fit - the instructions seem very vague!
Warren.