JHM O-ring for coolant pipe to back of cylinder head for B6 S4, C5 A6-allroad w/ Chain 4.2L MSRP: $17.00
JHM Supercharger COMPLETE replacement seal and gasket kit for Audi B8-B8.5 S4-S5-Q5-SQ5, Q7 and C6-C7-C7.5 A6-A7 w 3.0T MSRP: $664.00