I found some Tein S tech springs already installed on tc's strut assembly. The thing is the part number on the springs don't match Scion tc's Tein S tech springs. I believe tc's are SKL52-AUB00. The number i pulled off the springs were tein SPR01-010950. honestly just by looking at them they look the same and from my knowledge they came off a scion. Will they work ?

 

now if i'm correct, if the serial # does NOT match to the #'s on tein's website, those sshould be fake, but that's just my guess. However, if it was on the tC and functional, then it should fit
Also, found some sites saying that the #'s are country specific? so don't know what that means haha

 

Part number doesnt match anything on Teins site. And spring rate is equally important to them just fitting. Since you have no idea what the rate is, no telling what they will be like installed if they fit. Stechs suck for handling to begin with, I wouldnt go slapping on knock offs that you know nothing about.