I said elsewhere but I'll repeat here--it's best to use this stuff as it's shaped.
I wanted to run a second muffler, and had two pipes to connect that were 90-degrees, so I cut a bit of this tubing I'd gotten (half-inch inner diameter and 1/8 think), bent it around the bend and clamped it and it looked perfect. When it heated up though, it got soft and a kink bent into where it turned, mostly blocking off the exhaust pipe.
Worked great for about 60 seconds! Then I keep slowing down, at full throttle I'm doing 10 MPH instead of ~30....
Didn't ruin anything, but anyway... :-| When it gets above, say, 50 degrees, I got to fix that.
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