SS201 Flexible Nipples Specifications 1,Installed between engine and muffler. 2,The products are used to decrease engine noise and vibration. 3,The products can absorb muffler pipe thermal expansion. 4,The products can reduce air pollution. 5,Main body is stainless steel 201/304. 6,Structures:Lined with inside innerlock,inner braid or nothing inside. 7,Size(mm): ID:35,38,45,50,54,57,60,64,76,89. Lenght:100,150,200,250,300,350.(as clients)