2008 Chrysler T&C 3.8L Y pipe

Had the same issue with my 2009 Grand Caravan 4.0L five years ago. I change the pipes with aluminum aftermarket ones from Dorman along with the hoses. Last year I had the dealer replace the water pump which was covered under the lifetime warranty. A heater hose was also leaking and they wanted to replace the whole heater hose assembly under the hood for $300. The factory parts included the plastic pipes. They agreed to just replace the leaking hose with a piece of heater hose and clamps but wouldn't guarantee it. The hose hasn't leaked since then.