Nashville shops and performance ideas

How's everyone doing today? I was curious if anyone has knowledge of reliable performance shops around Nashville, and also performance ideas? I have put about 50K on my 2010 528i, and I know it isn't a beast by any means, I am just looking for a few things to get a couple extra lbs.-ft of torque or so. I can't even find an air intake system for this car. Best I have found is typical exhaust and air filter. That's it. Can anyone please help? At least point me in the right direction to look. I would really appreciate it. Thanks,

Hi, I'm not sure you can do anything else to your E60 besides what you have mentioned unfortunately. You can add a Juice Box, but this requires wiring to the ECU. I would have a pro do this if you go that route, unless your comfortable with this sort of installation.

http://burgertuning.com/BMS_Power_Box.html

I had 2008 528xi, same dilemma.
I'm sure the experts here will chime in and offer their advice, maybe there's something else you can do.

No offense, but I doubt there are any easy ways to get any real HP out of that engine.

Exactly, but at least you can get rid of that throttle lag feeling if you add a sprint booster or Juice Box. Then air filter and exhaust should help a little. But yes, no real significant HP gains unfortunately.