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The 2006 Audi S4 Base fits 18 to 20 inch wheels that are 8 to 9 inches wide with an offset between +30 and +42, on a 5x112 bolt pattern.
The stock tire size on the 2006 Audi S4 Base is 235/40R18.
57.1mm
Lug Bolts
M14x1.5
Check out our Audi S4 Build Threads to see real-world examples of how other enthusiasts are customizing their cars. From wheels and tires to performance upgrades.