phreerider
Senior Member
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with the back pressure on tuned pipes and "exhaust eating" for reburn, i was concerned about coupler material i.e., silicone/heater hose being pulled back into combustion chamber. seems trivial but wanted general consensus on the topic. silicone is 10x the cost and is nice, but automotive heater hose seems low buck effective. for field repair heater hose is an easy choice. the eaten parts of whatever material that is used for the most part goes OUT but some is being eaten as well. any thoughts experience on this for the long term benefits of a fresh mill coming.