my new car?
 

ok i have decided to get a honda civic lx bettween 2006 and 2008 it is a weak car but with good mpg i think i want it a little more power to it want would happen if i put an exhust on it and an air intake in it want would the difference be from mpg to power































thanx to who ever answers this

Putting an intake and exuast should not make a difference in MPG because it actually provides more air flow as long as you dont cut out the catalitic converter and put a straight pipe your mpg shouldnt change unless you drive hard .... and as far as power should boost you just a lil u will notice a slight difference.