where to start on my 1990 325i

[Hooffenstein HD]

Forgive my idiocy, but what size mm springs should I look at from h&r

H&R Race + Bilstein Sport would be the go. Hit up one of our forum sponsors for them, Blunt Tech, Guten Parts etc.

[SkurtleyE30]

H&R Race + Bilstein Sport would be the go. Hit up one of our forum sponsors for them, Blunt Tech, Guten Parts etc.

Will do thanks mate!

[frankie591]

I imagine all your suspension bushings will be original so go ahead and replace those too.

[EN318isPDX]