Pete, what are the symptoms that cause you to want to replace the check valve? Crank time? - Michael On Sep 13, 2007, at 11:00 AM, 200q20v-request at audifans.com wrote: > other than I need to replace the check valve soon. I think > the Pierberg requires adapters, to my understanding it is not a > direct fit. > > Pete > 91 Avant