This is to stop the fault code that appears on the dash when changing an exhaust (exhaust valve flap error). Intended for an after market exhaust system without valves or to stop the error when changing to a non standard exhaust. The allows the exhaust valve to be permanently open fully across all driving modes without flagging up a fault code in the ecu/dash. High quality ABS, fully sealed ready to go. NOT A CHEAP CHINESE COPY
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