NOT KNOWN FACTS ABOUT AUDI A4 B9 TURBO UPGRADE

To accomplish this, you need two important parts of information. Very first, you need a essential expertise in how an engine functions and what we're hoping to achieve by tuning it. Secondly, you are going to need a system to follow to make sure you don’t miss out on any vital bits. So what is a tuneup? When does one need a tuneup? What exactly