The sportlines were made for the cobalts only. If you attempt to put the springs on your IONs struts or even with the cobalt struts, the top hats are different... you will need to order some special shims from Powell Raceshop, otherwise it will rub, create friction and cause loud suspension noises. You can order all the pieces to complete the top portion of the strut with the shims from Powell to save the headache.
My car topped out at 140 miles per hour, this morning.
I need NOS. Two of the big ones, and I need it tonight.