The installation was relatively easy. Simple and quick to install. Activating and reseting was easy. We used it on my buddies Truck to test since it's hard to tell on my vehicle. He had a misfire and during the period that it was being used, seemed to help the misfire by correcting the fuel ratio and tuning it on the go. Great product!!! Definitely helps out the older vehicles.

Working with carsponsors and InstantHP was very easy and helpful. Both companies replied within a very good time frame. Each had verh helpful tips and clear instructions.

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