yea i figured that out the hard way... i changed my gsr valve cover from black, to red.. red is a type-r color.. but i'm goin with gray an red for my car colors.. an i tighted the nuts too tight. so when i went to loosin the nuts they where just spinning on the bolt... so i had to cut them off an buy two new ones... an buy new rubber an metal washers.. it ended up costing 50.00... for the parts..