Stage I - ECU/Chip Upgrade
 APR ECU Upgrade

Stage II - ECU/Chip Upgrade and Exhaust
 APR ECU Upgrade
 APR Full Exhaust
 APR Engine Snub Mount*

 B6 S4 4.2 Intakes




Stage I - 355x32mm 2-Piece
Stage II - 355x32mm 2-Piece Monobloc
Rear - 345x28mm 2-Piece

 APR Tuned Badge
 APR Promotional Items