Have located some new old stock neoprene mufflers (that apparently are no longer being produced.) They are new, an appropriately sized for my 427 FE Fords at 300HP. Advertised as being much better ("80%") than standard mufflers (think the original tin cans on there now from 1966). Also advertised as less backpressure. Supposedly impervious to acids, fumes, liquids, and heat in the exhaust. Nothing not to like, right? Anyone have any experience or comment about these Salisbury neoprene mufflers? Especially interested in how they may compare to fiberglass mufflers as to cost, durability and performance. Thanks for any comment you may have.
From Ebay Salisbury # M185 – Neoprene Rubber Exhaust Muffler / Acoustic Marine Silencer Proven to reduce exhaust noise up to 80% and up to 50% better sound suppression than conventional mufflers. Does not steel power because of excessive back pressure. Manufactured of heat resistant neoprene. Impervious to the corrosive acids contained in exhaust gases. No metal to corrode, rust or suffer damage by electrolysis or freezing. Flexible neoprene construction. Easy to install – a hacksaw and screwdriver are the only tools required. Bushings optional. Model: M-185 Horsepower Gas: up to 185 Horsepower Diesel: up to 90 Body Size: 7-5/16” Diameter Flange Size: 8-1/8” Diameter Length: 19-1/2” Standard Inlet/Outlet Size: 4-7/8” Free Reducing Bushings Available ( Call for sizing )
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