got these installed yesterday.  found the low pressure 1/4" hose was in need of replacement, it ripped while i was pulling it off the metal bodied fuel filter i'd been using to connect...  probably coulda used the 90 degree on the high pressure side was well.   very high quality, hefty parts.  i'd imagine one could easily break a window.   replaced the cam chain tensioner and fuel pressure regulator "while i was in there", bike's running more smoothly and quietly now.