Hallo Lauren
So here is a few basic Fanatic Rules.
1) Get your BMW on a Dyno so we see what we have to work with.
2) If you have anything less than 18 rims, you will have to upgrade to at least 18" rims, more preferably 19" and if you really want to push it 20". The rims need to be wider than standard so you can fit nice fat takkies. You need to get a real COOL rim design or people will laugh at you.
3) If you have turbos on your engine you need to put BIGGER turbos on your engine.
4) If you don't have turbos on your engine you need to fit some (BIG ONES), or a Supercharger, or at least Nitrous Oxide.
5) You need to get new software into your ECU (Engine Control Unit) otherwise it will make you feel sad.
6) You will need a new exhaust system that is much louder than the original so that people can notice you.
7) I hope you don't love cats because you will have to decat the car.
8) You will need new suspension parts to help you get through the corners better, and they look cool as well.
9) You will have to fit all funny and diverse Carbon Fibre body "enhancements" to make sure you fit in.
10) When your'e done back to the Dyno to see how far you've come.
OK this is just for starters.:rollsmile: