These bikes get better with age. The more you ride them the stronger they run. I've had mine for 28 months, have 22,000 miles on it and like it more than I did when it was new. The folks on this site have been great and will help you with any project or upgrade you may consider. As others have said, your first modification should be the air injection removal. After that just ride a lot and make whatever changes your personal tastes call for and your wallet will allow. Luckily on our bikes the performance modifications that make the biggest improvements are fairly cheap, some cost nothing and just take a little effort. Enjoy!