Which is why I don't do it now. The WOT box cuts the ignition for a specified time when shifting at WOT to keep the synchros safe. It is adjustable from 10m/s to 700m/s. Some people should have some reviews soon. Julian@MRC has one on his car now and loves it. A few people have purchased them and are awaiting shipment to test them.Originally Posted by Dirty Mech.