Seller notes

Our system for the BMW G30 M550i valve is controlled by our OBDII device or can be hardwired to direct positive/negative lead. When the valves are fully open for maximum flow and power, it creates an exotic tone and allows for high performance. When the valves are closed, volume is reduced for a more low-profile comfortable drive. Please leave your exhaust model in the description at checkout to ensure you will be getting the correct item. Please note, there is a lead time of 30 days to make eac...

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