Billstein, Saleen, Steeda?

 

I'm sorry, what exactly are you referring to?

 

I have a 99 Cobra and I was wondering what other kinds of suspension would work (integrate)with an IRS? Like, would Steeda springs work?

 

We have many spring sets which work on the IRS...

http://www.stangsuspension.com/store...?idproduct=910- Eibach Springs
http://www.stangsuspension.com/store...?idproduct=121- Steeda Springs
http://www.stangsuspension.com/store...?idproduct=308- H&R Springs

All of the above will work with the IRS Cobra.

Also, we have a complete IRS bushing section. We carry all the small bushing & differential upgrades required to improve rear end grip... and prevent wheel hop.

http://www.stangsuspension.com/store...idCategory=116- here is our complete IRS Cobra bushing section.