So ive had my 07 Camry SE V6 for a yr now and after good thought ive decided imma stick wit my camry til the end and decided to start hookin it up. in lil then a month imma install cross drilled and slotted rotors to replace my old ones after that i want to do one more mod but not sure what to do??? any ideas or what was everyones first mod. looking at spending no more then 300.