All M/E Wagner Performance products ship with full support documentation. If you have lost your documents or would like to preview the operating instructions before making a purchase, they are available for download below.
DF-17 Dual Flow PCV Valve Shop Manual [click here]
DF-17 Dual Flow PCV Valve Frequently Asked Questions [click here]
DF-17 Dual Flow PCV Pre-Installation Checklist [click here]
DF-17-INL Inline Adaptor Instructions [click here]