[p-talk]

Or an 034 Motorsports one - billet aluminum, polished silver or black, stock fit, and cheaper:

Bypass Valve, 034 Spec - 034 MOTORSPORT

Originally Posted by choinga

This is all you need...high quality and a stock fit:

BYPASS VALVE BILLET REPLACEMENT NON-DIAPHRAGM at LINDSEY RACING - Your Porsche Performance Parts Center