If you really want it, have a serious Mazda dealership do the modification. They will give you the warranty you will definitely need. Any other shop will charge you a fortune and you will not be happy when it leaks. The CX-9 Is the Lexus of the Mazda line. Treat it nice and it will be yours and beautiful for the next 10 years. I own a 2012 Mazda 5 and a 1999 B2500 pickup. Both are excellent vehicles.