The factory couplers that connect the turbo, intercooler, and intake start to wear out, and the last thing you want while towing the camper on the weekend is one of them to burst. The Silicone Intercooler Replacement Boot Kit for the 07.5-09 6.7L Cummins will help you prevent a ruined weekend and expensive tow/repair bills. Glacier Diesel's kit consists of one silicone high pressure turbo to intercooler hose and three high pressure silicone straight hoses. High quality, rated for 200 psi and made of high quality 4 ply silicone, these American made silicone hoses are manufactured to withstand the higher boost on modified trucks as well. Don't you worry, the kit includes boots and stainless spring clamps too.