Adoubi21

Hi my name is Austin and I am 20 years old and just recently purchased a 2011 Maxima SV w/ sports package. I am looking to get some performance gains so I can make this car my own. I used to drive a mazdaspeed protege so I have little knowledge about the Nissans and what tuners are the best and who to get them from. So any leads towards a good tuner would be awesome. What did you guys use as well if you have tuned your Maxima?