What are some safe modifications to do to a 2006 acura rsx automatic tranny?

I don't race or anything or blast my car on supermode or whatever but what are some safe changes to do to my rsx?What are some safe modifications to do to a 2006 acura rsx automatic tranny?
Exterior:I assume you want a show car. In that case get a body kit with a high wing spoiler. 17" rims of your choice. Get a HID kit and fog lights.



Interior: You could get a better head unit and throw in a new amp along with a sub woofer.



Engine: I wouldn't recommend this on an auto but if you want you could get the basic intake/header/exhaust modifications for some minimal power gains.



Handling: Get some springs and associated shocks. Avoid using the stock dampers with after market springs. Replace the rear strut bar with that of Progress for some sweet results.What are some safe modifications to do to a 2006 acura rsx automatic tranny?
Install a strut brace to improve handing. Replace the standard air filter with a K%26amp;N.