2008 Porsche Boxster Wheel Offset

Quick specs

Wheel size: 6.5x17 · 8x18 · 8x19 · 8.5x19
Offset: ET55 · ET57
Backspacing: 5.42 in · 6.24 in · 6.42 in
Bolt pattern: 5×130
Center bore: 71.5 mm, 71.6 mm
Thread: M14×1.5
Tire size: 205/55R17 · 235/40R18 · 235/35R19 · 235/35R18

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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, M 96/25, F6, Petrol	6.5x17	6.5x17	ET55	5.42 in	205/55R17	5x130	71.6 mm	M14 x 1.5
2.7 · 2.7L, M 96/25, F6, Petrol	8x18	6.5x17	ET57 / ET55	6.24 in	235/40R18 / 205/55R17	5x130	71.6 mm	M14 x 1.5
2.7 · 2.7L, M 96/25, F6, Petrol	8x19	6.5x17	ET57 / ET55	6.24 in	235/35R19 / 205/55R17	5x130	71.6 mm	M14 x 1.5
3.4 S · 3.4L, MA 121, F6, Petrol	8x18	8x18	ET57	6.24 in	235/35R18	5x130	71.6 mm	M14 x 1.5
3.4 S · 3.4L, MA 121, F6, Petrol	8x18	8x18	ET57	6.24 in	235/40R18 / 235/35R18	5x130	71.6 mm	M14 x 1.5
3.4 S · 3.4L, MA 121, F6, Petrol	8x19	8x18	ET57	6.24 in	235/35R19 / 235/35R18	5x130	71.6 mm	M14 x 1.5
3.4 S · 3.4L, MA 121, F6, Petrol	8.5x19	8x18	ET55 / ET57	6.42 in	235/35R19 / 235/35R18	5x130	71.6 mm	M14 x 1.5

Wheels and hardware

Lug hardware

Real-World 2008 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 — 1 documented build

1 documented build.

Staggered · 19×? / Rear unknown

Documented on a 2008 Porsche Boxster build — observed custom fitment, not a universal fit guarantee.

Wheel: Victor Innsbruck

Front: 19×?
Rear: —

View full build on Modified1

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OEM baseline

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More specs for the 2008 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.