Just purchaed my first used 04 audi a4 quattro 1.8t and have been very impressed and excited by the ride and the work i've put into.

Although parts are expensive the ingenuity and craftsmanship of these cars make them fun to work on.

This spring/summer I will have to change the pulleys water pump and belts.

Also looking to add a cold air intake.

Any good manufacturer or parts for these maintenance/repair items?

Also any other fun fixes or changes to make the ride that more enjoyable please let me know.