Chrysler 300s 2012 3.6L need tune

I have Chrysler 300s with x pipe exhaust so if anyone can tune my file down there

Nobody worth a tune is going to do it for free.
You have three options :
A)Pay a tuner to tune it in a dyno.
B)Pay for a mail order tune
C)Start timing it yourself and ask if you are going in the right direction

I've been tuning the 3.6 in my 200 and one thing I can tell you is that the tuning from year to year and chassis to chassis is different, especially if you look at the cam timing data.