Hey everybody-
I have what I believe are Bilstein coilover front struts on my car, can anyone confirm?

Thanks and Happy New Year!
Adam

Yeah, looks like....

Yep,straight tube

Look like Rebel Racing Bilstein struts.

http://rebelracingproducts.com/Suspension/Steering.html

Close but mine don't have the secondary helper spring

You can buy the RSR strut assembly from them with or without springs. The gussets just looked like theirs.

Typically when you buy these struts the come with either no springs, or the buyer chooses a set of springs for the application.
So, the struts are bilstiens, but springs could be all over the place, different brands etc.
You are into the nascar type spring there, so there are many more choices.

The helper spring can be purchased from coleman racing or most any other decent racing website.
It does a few things, but two are important in my opinion.

First, it will hold up the larger coil spring, under slight tension, to keep it lined up properly to the upper and lower spring perches, otherwise it can turn and get out of line.
When that happens, one side may sit higher than the other and screw up your corner balance.

Second, the smaller spring gives you a way to fine tune the spring rate, and creat a progressive suspension that can work better in different situations.
So, you can buy lots of different helper springs and use them for different requirements.

Rich