I have them on my 02 GTS. I must say they look 1000 times better than the cheap rubber hose's that that most have put on their cars.I am on my sixth Viper and could never bring myself to pay $60to$80 for,what appeared to be five dollars worth of hose for the small gain. These are around $100.00,but they look very good. You do not need clamps. The coupler is made to fit perfectly. It's a tight fit, and doesn't seem to come off. When you see how the connectors are made, you will be impressed.
ps;try them with out the clamps, they look a lot better and should never come off, unless you have a broken motor mount.
Skip White