Cheap track suspension for 318is

[maldini]

Newbie here.

Have taken the plunge with a 318is and want to fit the best value track day set up.
The car already has Bilstein dampers and some green Weitec springs. However, the suspension feels really soft and bouncy, especially at the back when you press down on the bootlid.

Without spending big bucks what would be the recommended way to firm things up a bit?

I'm thinking about Eibach ATB's front and real with Eibach sport springs.
Will this make a noticeable difference?

Any advice gratefully received.

cheers

[reggiegasket]

Have a look at the Zone Shop. Most people like the H&R Cup Kit.