just had my bonnet struts replaced at a place in northampton.took old ones off removed old brackets and fitted to new ones.old ones only had 270nm of pressure and that was a good one.new ones now have 350nm and bonnet stays up so no more bruised head.not that you ave too lift a lexus bonnet that often i must add.very nice firm too deal with.total cost=£28.98.[metrol springs ltd 75,tenter rd,moulton park,northampton..nn3 6ax ].......www.strutsdirect.co.uk....08701672122..hope they can help some-one else on ere