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Edge Trail Jammer Kit

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02. The Edge Trail Jammer kit gave the biggest power improvement I’ve ever seen (from a tuner/chip/ECU mod) on a gas engine. I figured out that the Edge tuner box fit behind the factory ECU on the firewall, held in place with a little sticky tape. The train of thought was that if the factory had chosen that location to be most ideal for putting the engine’s brain, then it had to be the best place for the piggyback tuner box to be away from heat and moisture as well.