i have a 2000 a4 audi 1.8t turbo what can i do to make this car go faster

chip it exhaust for starters and an uprated DV.

Chip, exhaust and air filter. The dv wont make you go faster, but you should get a new one if you add more power.

Call John at AWE Tuning and he can steer you in the right direction.

look them up on line www.awe-tuning.com (http://www.awe-tuning.com) everything you need is there and they know what they are talking about

Air filter will see no gains if anything you will loose power as all it will do is suck in hot air.