I was wondering what I could do to my 1996 v6 toyota camry 3.0L to make it better, performance wise (faster, better mpg, etc). someone mentioned to me a new hi-flow air filter, a new air intake, and a new muffler or exhaust. I know there isnt much to do for camrys but any suggestions would be greatly appreciated! Also i was wondering how much horse power gain do i have to have before i notice it? like will i notice a 10hp gain? thanks!