Got my '10 xrs last year and have been thinking about getting some performance parts for it. I love this car so that's why i want to make it even better

So i was wondering what parts i should put on my?
I have been talking to a shop my friend recommended and he said i should get a AEM V2, maybe a greddy muffler, and tein's springs. but obviously those cost a lot...
So i was wondering what you guys suggest would be better for my xrs..
Was also wondering if i should put a ECU chip on it and which one i should put?
Is there an aftermarket camry grille i could get for my car?
Thanks in advanced