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Originally Posted by Wizard
The heat would stay in the exhaust. And if anyone knows the theory of exhaust velocity and heat transfer (read up on exhaust wrap) you would see the reasoning.
Similar to the EVO 7+ sodium filled exhaust valves.
Wiz
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Oh yeah, sodium filled exhaust valves IMPROVE heat transfer, not prevent it.It has nothing to do with velocity or efficiency, or anything close to the principal behind exhaust wrap.Sodium filled valves are used simply cause they don't burn up as easy.And they weigh a little less as well
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