Does the stock s4 manifold mate with the 10 head? 3B and the older 5000 motor? --Scott Munger '93 S4 '02 Jetta GLX replaces '97 Cabriolet - Let out to pasture --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.688 / Virus Database: 449 - Release Date: 5/18/2004