I have the same car as you my friend kinda funny but I started all my mod upgrades at 58,000 miles I have the torquer 2 cam with LG long tubes 2.5 PRC heads and anything else you could think of... With the package that I have on the car it's beast RWHP has been 444..
Which is a big upgrade from factory although with the money I've spent on it I could have put a supercharger on it and would be making a ton of more horsepower but like you I wanted to hear that cam a few weeks ago I had the magna flow full exhaust installed on it..
I didn't think I would like the Flows but in the end it has that deep old school muscle car sound
Good luck with your car