I'm finally gonna hook up my ride...just dont know where to start, should I get sounds first, under my hood, or a body kit??? I have a 2001 cls.

 

That depends on your personal tastes and priorities:

Corner on rails: CT Sways, Drop Springs, Koni Shocks, and better rubber
Faster Acceleration: CT Headers and CAI
Better Looks: Zaino, 18" rims, drop springs, tint

 

True...but I want it all

 

Just to get started i'd recommend sways and the intake. Big improvement in feel and sound. Then you'll feel the tires screeching more so upgrade them. Then Headers for more power and springs and struts for way improved handling. And on and on........

 

Sounds as in ICE, or as in i/h/e?

 

Springs first! Instant improvement over performance and looks. Now that I got the CT springs...my wheels barely screech, and these are stock tires too so that's an improvement for them. Then get a CAI next!

 

1) TINT
2) DROP
3) INTAKE

Then go on from there, IMO.