Performance upgrades

[auditech79]

I have to add S8 4.2L owners as well.

Unitronic chipped for the 01-03 S8 brings you from 360 to 380 HP! Chip runs $550
Ive driven a chipped S8, and i can tell you it hauls some major booty.
Unitronic chip for the 07+ FSI takes you from 450 to 477 HP! Chips runs $800

The supercharger kits for the A8 are also for the S8, but with numbers like this i would think its really not needed, a chip should be more than enough power to satisfy your power cravings.