a4quat
Registered User
in the next few days ill be fitting my n75 j valve on my 1.8t quattro ive just had a quick look and is it the thing underneath the round diaphram on the pipe between the airbox and the turbo? also ive heard that you fit them upside down due to the wiring but is it easy to mess the air tubes up as there is a few coming from it? and if i fit an aftermarket air filter is there pre made holes for the sensors thats on the top of the airbox?