We designed these to be used while doing a carbon clean on our RS4's. They cover the intake port to make sure nothing falls in. We have these in two forms, one for when you leave the fuel rail and injectors in place, and one for when you have the injectors out, make sure you get the right ones or both.
Sold in sets of 7 so one port is open for cleaning. 3D Printed by us in TPU
