Thread: Butterfly Exhaust Valves
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Old 02-16-2017, 01:38 PM
Moto One Moto One is offline
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Location: Tahoe/Truckee, ca
Cobra Make, Engine: Ford Racing 363/8-stack injection, SPFR0012
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You may want to look into silent choice (we use it on the boat) but it reroutes thru mufflers..

Mark
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