Quote:
Originally Posted by rotarycrazy
i would like to see how they perform since you end up taking so much of the supportive material out of it.
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Agreed. I love the idea but not sure of longevity. The area around the spark plugs and the exhaust outlet are my biggest questions even with the sleeve in it still takes a lot of abuse. Have you all run these yet in high output engines or stock builds? If so, for how long...