Ihavea 2000A4 2.8 and it doesn't seem as powerful as it once was. Engine sounds fine. I know nothing about engines...is there anythnig that might be wrong or need to be tuned to get more power back or am I just getting used to the powe... it doesn't seem impressive anymore?

 

Summer heat?

 

Less power because the a/c is running?

Any codes coming up or anything? You may want to have ecu scanned in case something is failing.