Recommended S60R Mods?
 

I'm about to buy myself my first Volvo ever! I'm pretty excited about it and am wanting to know some of the go-to mods for the car? It's a 2005 S60R Auto, I was already thinking of making the suspension a bit more tight, but also would like to do some work to increase the sound and power! What are the first mods you'd recommend? Thanks!