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Originally Posted by 506JTF
Are your exhaust valves open when the car is off? Or closed. Tried to install the mild2wild switch and the valves never moved. Is the zl1 different from the z06, where the valves are always open?
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They are open when off, both stock and fuse pulled or switched. To see them closing you will need someone in the car to bring up the RPMs.
If you have it installed you should be able to hold the rpms at 2000 and hear it opening and closing with the switch.