I am pretty sure i am looking at the power assist hose on my 2.7. Just found out i have an APR mod on the ECU and when I had it in the chipped option, I blew the hose off of the manifold due to a cracked plastic fitting. My question is can I replace just the round black fitting or do i have to replace the entire hose assembly? Also, I had to email the pic to the local audi dealer and he told me the hose will be $180.00 but would not give me the name or part number for the hose. Any help will be greatly appreciated.