there is no automatic si
also an si cluster will not have the correct redline for your engine if you are concerned about that at all

just hit up a junkyard and look for a 96-00 manual civic with a tach
its a simple swap over and you can also swap your current mileage over to the new cluster so its accurate as well

there are plenty of diy guides around the web to help you, but its really just a few screws and a couple of plugs, the tach wiring is already in your car so its just plug and play

also read here
https://www.honda-acura.net/forums/s...d.php?t=238067

good luck