Installed on a 2018 Jeep Wrangler JK Unlimited with a Cobra 75 WX ST. It says it comes pre-tuned, and after installing and testing the SWR, that statement is true, at least for my car. CH1 = 1.1, CH40 = 1.4. Of course, all vehicles (even the same make/model/year) can be different when it comes to SWR, so make sure you get an SWR meter if you don't already have one when using this kit to install.
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