1 definition by SAF-E
The latest in fuel injection technology released by Audi/VW. Not to be confused with "You FAssi" which means you are a loser! lol
This technology is said to increase power output and improve fuel economy at the same time. FSI is the same, minus the TURBOCHARGER. Is it any good? You betcha!
by SAF-E November 26, 2007