I have a 16 Tacoma TRD Off Road, re-geared to 4.88, and with plenty of upgrades (roof rack, bed rack, bed box, tent, under armor, inner storage... aka extra weight) and ECU update from OVTune aftermarket tune program specific for octane, wheel size, 4.88 gears. The RIPP power packs was the last of the equation. Low to mid power improvement which is perfect given the gear ratio. Shifting has improved to more smooth, and cruising has become more stable without gear shifting. This is a good buy for...