2013 Audi S6 Wheel Offset

Quick specs

Wheel size: 8.5x19 · 8.5x20 · 9x21
Offset: ET45 · ET35
Backspacing: 6.02 in · 5.88 in
Bolt pattern: 5×112
Center bore: 66.6 mm, 66.5 mm
Thread: M14×1.5
Tire size: 255/40R19 · 255/35R20 · 265/30R21

OEM configurations

Configuration	Rim	Offset	Backspacing	Tire	Bolt pattern	Center bore	Thread
4.0TFSi · 4.0L, CEUC, V8, Petrol	8.5x19	ET45	6.02 in	255/40R19	5x112	66.5 mm	M14 x 1.5
4.0TFSi · 4.0L, CEUC, V8, Petrol	8.5x20	ET45	6.02 in	255/35R20	5x112	66.5 mm	M14 x 1.5
4.0TFSi · 4.0L, CEUC, V8, Petrol	9x21	ET35	5.88 in	265/30R21	5x112	66.5 mm	M14 x 1.5

Lug hardware

Real-World 2013 Audi S6 Wheel Setups

Observed aftermarket setups from documented Modified1 builds. These are individual build records — not OEM specifications and not clearance guarantees for every vehicle.

Common custom wheel sizes

Among builds in our database for this model year:

21-inch — 5 documented builds
20-inch — 1 documented build
22-inch — 1 documented build

7 documented builds.

Diameter

Staggered · 20×10 ET35 / Rear unknown

Documented on a 2013 Audi S6 build — observed custom fitment, not a universal fit guarantee.

Wheel: BC HB27

Front: 20×10 ET35
Rear: —

Compared with OEM

Compared with the 20×8.5 ET45 OEM configuration. Calculated geometry only — not fit confirmation.

Outer edge 29.1 mm farther toward fender (more outward poke)
Inner edge 9.1 mm closer to suspension (less inner clearance)
Width +1.5" vs OEM

View full build on Modified1

Staggered · 21×? / Rear unknown

Documented on a 2013 Audi S6 build — observed custom fitment, not a universal fit guarantee.

Wheel: ADV.1 7TS

Front: 21×?
Rear: —

Compared with OEM

Compared with the 21×9 ET35 OEM configuration. Calculated geometry only — not fit confirmation.

View full build on Modified1

Staggered · 21×10.5 / Rear unknown

Documented on a 2013 Audi S6 build — observed custom fitment, not a universal fit guarantee.

Wheel: Rotiform BLQ

Front: 21×10.5 · 295/25R21
Rear: —

Compared with OEM

Compared with the 21×9 ET35 OEM configuration. Calculated geometry only — not fit confirmation.

View full build on Modified1

Staggered · 21×10 / Rear unknown

Documented on a 2013 Audi S6 build — observed custom fitment, not a universal fit guarantee.

Wheel: HRE S101

Front: 21×10 · 265/30R21
Rear: —

Compared with OEM

Compared with the 21×9 ET35 OEM configuration. Calculated geometry only — not fit confirmation.

View full build on Modified1

Staggered · 21×? / Rear unknown

Documented on a 2013 Audi S6 build — observed custom fitment, not a universal fit guarantee.

Wheel: HRE S101

Front: 21×? · 265/30R21
Rear: —

Compared with OEM

Compared with the 21×9 ET35 OEM configuration. Calculated geometry only — not fit confirmation.

View full build on Modified1

Staggered · 21×10 / Rear unknown

Documented on a 2013 Audi S6 build — observed custom fitment, not a universal fit guarantee.

Wheel: HRE P47SC

Front: 21×10 · 265/30R21
Rear: —

Compared with OEM

Compared with the 21×9 ET35 OEM configuration. Calculated geometry only — not fit confirmation.

View full build on Modified1

Staggered · 22×9 / 22×10.5

Documented on a 2013 Audi S6 build — observed custom fitment, not a universal fit guarantee.

Wheel: Vossen CV-T

Front: 22×9
Rear: 22×10.5

Compared with OEM

Compared with the 21×9 ET35 OEM configuration. Calculated geometry only — not fit confirmation.

Diameter +1" vs OEM

View full build on Modified1

Compare your own setup

See how a different width or offset sits versus an OEM configuration for this year.

OEM baseline

Open full fitment calculator

More specs for the 2013 Audi S6

Each OEM row is a catalog configuration. Offset ranges are not collapsed when the database has exact setups. Documented aftermarket builds are observed setups only — not universal fit or clearance confirmation.