1)KKM is a great first mod especially if you make or buy a custom airbox. Its truly easy to do yourself.
2)chip is iffy, variable results. Some risk of warranty issues.
3)Y-pipe is probably the best bang for buck with easy installation and limited warranty risk. Several choices from SHO-Shop, MSDS, Random technologies.
4)Catback (Bassini, Borla, SCA) good mod but more expensive than Y-pipe. Can get most of the same results with custom muffler shop installation of high flow resonator and mufflers.
5)Later, if your serious - headers, larger or polished throttle body and MAF, custom burned chip etc.
Would do Y-pipe/KKM first & see how you like it. Since you have the chip could try it & see what happens - it may work well.
