Our valve and installation kit replaces the original unit with a pressure/vacuum operated piston valve, that still also retains the desirable OEM ECU control over valve actuation. This product has been thoroughly designed and tested with the expressed intent of offering improved valve response and maintaining ECU control while resulting in absolutely NO fault codes, NO check engine lights, and no adverse effects of any kind. All of the necessary components and detailed instructions are included and everything is designed to make installation as simple as possible. 1X FMDV10 Valve Posi-Tap Terminal Solenoid. Vac Tap Red & Blue idle spring Forge Keyring & Sticker 4mm Vacuum Hose Cable Ties (x10) Instructions.Mods4U is a small family run business who have been working within the modified car parts scene for some time. We are a small business and as such there may be occasions when we are unable to fulfil the order due to issue out of our control so please bear with us!