2008 mazda 6i 2.3l upgrades
 

Hey guys, i need a hand here, im trying to figure out what i can upgrade on my 08 mazda 6i 2.3l auto, i cant seem to find many aftermarket parts. The first thing i was thinking to do was get an exhaust system, but i could only find some online for every year besides 2008 pretty much.
Does any other years exhaust or mufflers fit on an 08, im not a car guy as you could probably tell. Thanks a lot