hey guys is it necessary to saw off the bumperstps that are on the stuts  and shocks or can i simply leave them on. i have sportlines for my springs
 
The 
aftermarket struts, which are 
necessary for Sprotslines, will not come with bumpstops. You will need to take the stock bumpstops off, and cut them, in accordance with the 
directions included with your struts.
 
 
right, they need to be cut.  usually its just right in half