Audi 3.2L (05-08) Spark Plugs (set of 6) PRE-GAPPED oem NGK Spark Plug - NGK PFR7W-TG (5592) (set 6) Audi part# 101 905 621, by NGK (OEM). These are PRE-GAPPED for the engines below (just install and use) Fits: (2005-2008): A4 3.2L (2wd or Quattro) Fits: (2005-2008): A6 3.2L (2wd or Quattro)