anti-squeek sleeves on teins?

[qnz]

what are those plastic sleeves on the tein springs? i think i read somewhere theyre to prevent squeek but can i take them off? theyre glued on on mine

http://www.catbackexhaustairintake.com/images/product/medium1/TEIN%20Lowering%20Suspension%20Springs%20S%20Tech. jpg

[pinoyesv6]

those sleeves are to prevent sueeking of the springs if they were ever to rub together. ov course you can take them off but i don't see a reason why u should i mean unless you want to hear squeek squeek when u hit a bump or osmething.

[Kalamidad]

I don't remember seeing those anti-squeek rubbers on mine... Mine squeek more than i would like. Anyone know if those can be purchased separately?
Anybody have the number to Tien?