Suitable for all engine oils

as this is defined by halfshaft lengths

This also aids in valve & guide cooling which further extends service life in demanding environments

You can also upgrade your pre 2021 Wisefab S13 rear suspension kit to new toe arm design by purchasing "S13 Rear Suspension Mod Kit"

BOV Kompact EM Plumb Back VR21 JR42 Suitable for all engine oilsThe Mult+F9iple Award winning Kompact EM Series of Upgraded Diverter Valves are the worlds first truly plug and play Upgrade solution for your factory diverter valve. Unplug and unbolt your OEM Valve, and install a Kompact EM Valve in its place. No adaptors, hoses or extra assembly are required. The Kompact EM Valve Series from Turbosmart takes the motorsport proven billet valve technology and adds an onboard proprietary solenoid system and internal