I have a 2004 545i with 67k miles. i feel like the car is lower than it should be because the shocks are wore out. Do you guys recommend getting an aftermarket set up or buy the OEM shocks? I wouldnt mind my ride being a little lower but i just dont want my ride to be to rough.

 

shocks/struts dont lift the car. they only dampen movement. worn shocks done lower the car. worn shocks result in a more bouncy ride.
springs are what hold the car up. shocks just control how they bounce.

 

can i get springs that lower my car by about 2 in. and keep the same shocks?

 

Yes you can, however you've mentioned that your struts are worn out. Replacing the springs on worn out struts is a very bad idea. Best option is a spring and strut combo/coil over system.