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Hmm .. yes I thought I remembered seeing the springy system used to retain expansion chamber exhausts on racing 2 strokes.
Although it does seem to me that relying on the springs (which can stretch/weaken etc) to provide an even sealing pressure around the joint , is a little haphazard.
I'm fine with spring connections where two pipe sections join but I'm less than convinced that it is ideal at the exhaust ports.
On the other hand, if the spring connections do work adequately it would save a bit of modding work and would also mean that I could fire her up with the new system on in the very near future, to see how it sounds.
Thanks for the reply, Nick.
ps. Did your bikes use the std, fairly rigid gaskets ?
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