With the product being made in America it's a reasonable price.. The picture quality of the instructions were poor. But overall the details describing how to install where good.. The adjustment dial for the throttle Optimizer could be made differently dissatisfied with that portion of it... Overall it is a good product with that said, I would recommend doing research and finding a similar product or this product that best fits you and your car.. With the rain I was not able to test at this time
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