Quote:
Originally Posted by rayofsi
hypertech and roughcountry offer something for the tundra and tacoma, wonder how different it is for the 4runner.
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I checked and as of 2023 both companies do offer products for the 5th gen 4Runner. The Hypertech is plugged into the OBDII port and apparently recalibrates the ECU. The Rough Country looks like it is installed in-line behind the instrument cluster and stays connected.