i bought my car in april of 06 and have loved it ever since. however my buddie just bought a 2.0T A4 and we traded cars for the day(nice of him huh?) but anyway his car seems almost identical in power and SOTP feeling.(my friend was shocked that my car felt as fast; if not a little quicker than his) we both are auto/Tip. could it be that the previous owner of my car chipped/flashed? is there any way i can tell by lookin in my car?

 

get a boost gauge.