what is a FI? is like redoing the gear ratios?

http://www.rx8club.com/showthread.php?t=122645

Read this ^^^
Should answer most of your questions...

Dude i'm sorry, but you ask alot of stupid questions...What is FI?, What is a reliable Turbo? I mean come on man, there is a search button, use it, ALL of your questions have been asked before, so just look around the site and you will find your answers.

FI is the elemental symbol for retard

FI is an abbreviation of forced induction , by turbocharger/supercharger. Forcing more air into the engine , thus "forced induction"

Fi as referenced in the new new NEW periodic table is the element of Fixium. Fixium is a gas that when applied to the intake system of a car magically repairs all problems with it, as well as giving it the abilities to fly andtraverse interstellar space! ... ...so am I full of crap yet? ;)