Don't understand why you "need" it in VTA, especially when this car was meant to run in recirc. But hey, it's your car. Disconnect the negative terminal on the battery to reset the ECU. The thick hose connecting the valve to the inlet, that needs to be removed. Depending on which HKS kit you bought, it should have come with a rubber cap for the inlet. If not, I think they're $10. Once the hose is removed, you'll notice it was attached to the valve on a "nipple" called the recirc fitting. Around the valve itself you'll notice 8 allen screws, 4 of those need to be removed to get the recirc fitting out. Once that's done, take out the fitting and put in the adapter that has fins inside in the shape of a Y. Reassemble the valve and you're set. Should take about half an hour if you're taking your time.