BMW 11-14-1-439-975 N62 V8 Collapsible Coolant Water Transfer Pipe Kit 545 550 650 645 X5 750 Stainless Steel! Not Aluminum Like Other Collapsible Kits! Direct Replacement Fits All BMW N62 V8 Engines 2002-2010 Save Thousands Over the OEM Replacement Time/Cost! One (1) Year Warranty