Aluminised Steel Hot Dog/Resonator. 3" (76mm) ID in/out, 4" (102mm) Body. Available in 3 lengths - 12" (305mm), 15" (308mm) and 18" (457mm).
Generally, Hotdogs are used to reduce certain noise frequencies and/or reduction in noise level in an exhaust system. These are a straight through design, however they do contain sound absorbing glass packing. Also available in different pipework sizes from 2" to 2½", please see separate listings.