Seller notes

- Does NOT fit RS3 RS5 RS6 If you replaced your stock exhaust with an aftermarket exhaust this plugs into the wiring harness that goes to the muffler exhaust valves and eliminates the soft error code that appears when the valve is removed/disabled.You can also disconnect the valve in the open position on your stock exhaust and plug this in to run open all the time.This comes with small protective plugs for the valves on stock exhaust to prevent corrosion on connection. - This fits Audi S3 S4 S5 ...

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