But it does one more thing besides look good. They last longer than rubber. And they don't dry out and get brittle. For anyone who has done work on an old motor this is a huge problem with rubber vacuum lines. The silicone ones shouldn't get brittle and crack... causeing vacuum eaks and drops in performance.
Firefly: Mal: You don't know me, son, so let me put this to you plainly: If I ever kill you, you'll be awake. You'll be facing me. And you'll be armed.