My dealership wanted an hours labor for full install, 1/2 hr for flash only if customer installs.
Found out it IS also a clutchless downshifter, which seems to SLIGHTLY blip sometimes, almost imperceptibly. Still needs to roll off throttle though (for downshifting only)
Seems to be happiest upshifting from second gear and up, with each higher gear getting smoother. Also best shifting at or above 4,500 rpm, meaning spirited acceleration. Manual clutch is much less clunky during sedate progression through the gears.
You might notice your sole snagging the mechanism while transitioning your toe under the lever for up shifting if your boot has a prominent welt.