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If your car didn’t come with NPP then there’s no easy way to control the OEM valves.
They require a lot more than a positive current to get moving. If you add the OEM NPP exhaust itself then it’ll act as the valves in a state of constant open.
I’ll add a +1 to the Jones X-Pipe, $40 to buy and replaced my OEM resonator that started rattling, tone didn’t change much tbh
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