1.) Neither of those would really 'help' your mpg's to a noticeable extent.
2.) There is no 'handheld' programmer available for the 2.2l. You can buy a Jet performance chip or go with a Trifecta tune. But Superchips, Hypertech etc...don't offer anything for the 2.2l.
3.) If you want better mpg's buy a prius

lol.
Merry Christmas!