I think it belongs to the reverse cone. I remember seeing a similar spring on our seadoo, but i cant check since we sold them.
EDIT: I dont know exactly were the spring belongs. I searched for it online for you and all i found was a Jet Pump mounting kit which included those same exact springs. Not sure what it is used for though...
'04 Silbergrau Metallic 330ci
ZSP / ZPP / ZCW / 6MT / VMR VB3 18" / OEM MTech II / M3 Trunk Lip / Matte Black Kidney Grills / Shadowline Trim / ST Coilovers / AUX
Last edited by BMWSilberGrau; 02-03-2013 at 01:02 PM.