Muffler specifications Position and mode number: 2 digits, 5 digits. Connector specifications Valve size: 66.5 x 35 x 22mm / 2.6"x 1.4"x 0.9" (length width height). Thread: 1/8(for BSP). Joint pipe hole: intake port = exhaust port = 1/4", exhaust port = 1/8".
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