To add to the point above: honestly you really gotta watch out for the water pump. On that B9 generation A4, they used a lot of plastic for the thermo...

Just saw this thread and I gotta chime in with a safety-first perspective. Honestly, I've seen some scary DIY jobs over the years that almost led to g...

Ok so, unfortunately, FL5 cooling is not as good as expected for heavy track use. I've seen sessions cut short way too often... Honestly, dont rely on...