Need to control fuel pressure but dont’ want to plumb in an external regulator? Now you don’t have to if you have a factory equipped EFI VW or Audi. Regulator is adjustable from approx. 3.3-5+BAR, and mounts in existing factory regulator provisions in the stock rail. May also fit other factory applications.
Note, our regulator has a groove machined in the body to allow the use of the OEM regulator clip, be aware of others on the market that do not., and thus cannot use the stock clip.