2013 Porsche Boxster Wheel Offset

Quick specs

Wheel size: 8x18 · 8x19 · 8x20 · 8.5x20
Offset: ET57
Backspacing: 6.24 in · 6.49 in
Bolt pattern: 5×130
Center bore: 71.5 mm, 71.6 mm
Thread: M14×1.5
Tire size: 235/45R18 · 235/40R19 · 235/35R20

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Showing matching bolt patterns and offsets up to 30 mm lower. Confirm center bore, load rating, and clearance at Tire Rack.

Configuration

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OEM configurations

Configuration	Front	Rear	Offset	Backspacing	Tire	Bolt pattern	Center bore	Thread
2.7 · 2.7L, MA 122, F6, Petrol	8x18	8x18	ET57	6.24 in	235/45R18	5x130	71.6 mm	M14 x 1.5
2.7 · 2.7L, MA 122, F6, Petrol	8x19	8x18	ET57	6.24 in	235/40R19 / 235/45R18	5x130	71.6 mm	M14 x 1.5
2.7 · 2.7L, MA 122, F6, Petrol	8x20	8x18	ET57	6.24 in	235/35R20 / 235/45R18	5x130	71.6 mm	M14 x 1.5
3.4 S · 3.4L, MA 123, F6, Petrol	8x18	8x18	ET57	6.24 in	235/45R18	5x130	71.6 mm	M14 x 1.5
3.4 S · 3.4L, MA 123, F6, Petrol	8x19	8x18	ET57	6.24 in	235/40R19 / 235/45R18	5x130	71.6 mm	M14 x 1.5
3.4 S · 3.4L, MA 123, F6, Petrol	8x20	8x18	ET57	6.24 in	235/35R20 / 235/45R18	5x130	71.6 mm	M14 x 1.5
3.4 S · 3.4L, MA 123, F6, Petrol	8.5x20	8x18	ET57	6.49 in	235/35R20 / 235/45R18	5x130	71.6 mm	M14 x 1.5

Wheels and hardware

Lug hardware

Real-World 2013 Porsche Boxster 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:

19-inch — 2 documented builds
18-inch — 1 documented build

3 documented builds.

Staggered · 18×8.5 ET52 / 18×10 ET54

Documented on a 2013 Porsche Boxster build — observed custom fitment, not a universal fit guarantee.

Wheel: Dynamics GT3

Front: 18×8.5 ET52 · 255/35R18
Rear: 18×10 ET54 · 285/30R18

View full build on Modified1

Staggered · 19×8.5 / 19×10

Documented on a 2013 Porsche Boxster build — observed custom fitment, not a universal fit guarantee.

Wheel: Niche Targa-Series 19

Front: 19×8.5
Rear: 19×10

View full build on Modified1

Staggered · 19×8.5 / 19×10.5

Documented on a 2013 Porsche Boxster build — observed custom fitment, not a universal fit guarantee.

Wheel: Dynamics

Front: 19×8.5
Rear: 19×10.5

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

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More specs for the 2013 Porsche Boxster

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.