RIVA Exhaust Coupler - Reduction (4"~3-1/2" ID x 3" L)

Our quality silicone exhaust couplers are ideal for high temperature applications in racing watercraft.

Silicone rubber will remain flexible and ageless after prolonged exposure to extreme temperatures, weather, or ozone - it will stay soft and pliable after years of use as compared to traditional rubber which will harden and crack. Silicone rubber is not for use with oil, however it will stand up to engine oil "mist" found in normal operating conditions.