yeah i have looked all round the engine bay as best i can with a mate and we couldn't see anything similar, searched the coolant system pages in the manual, i have also emailed venair to ask them, with no response yet. At first i thought it had been put in the kit by mistake but every kit of theirs for the 350 has that hose so i really dont know other than that its a good quality kit every other hose is spot on in shape and size.