2015 Porsche Boxster Tire Size & Pressure

The 2015 Porsche Boxster tire size depends on trim: the Base, Standard Trans takes 235/45ZR18 94Y; the Base, Automatic DCT Trans takes 235/45ZR18 94Y; the GTS, Automatic DCT Trans takes 235/35ZR20 (88Y); the GTS, Standard Trans takes 235/35ZR20 (88Y); the S, Standard Trans takes 235/40ZR19 (92Y); the S, Automatic DCT Trans takes 235/40ZR19 (92Y), per the factory service manual.

Factory-Spec Tire Size
Varies by trim
  • Base, Standard Trans: 235/45ZR18 94Y
  • Base, Automatic DCT Trans: 235/45ZR18 94Y
  • GTS, Automatic DCT Trans: 235/35ZR20 (88Y)
  • GTS, Standard Trans: 235/35ZR20 (88Y)
  • S, Standard Trans: 235/40ZR19 (92Y)
  • S, Automatic DCT Trans: 235/40ZR19 (92Y)

Base, Standard Trans

Tire Specifications

PositionTire SizePressureLoad IndexSpeed Rating
All235/45ZR18 94YDoor Placard
All265/45ZR18 101YDoor Placard

Base, Automatic DCT Trans

Tire Specifications

PositionTire SizePressureLoad IndexSpeed Rating
All235/45ZR18 94YDoor Placard
All265/45ZR18 101YDoor Placard

GTS, Automatic DCT Trans

Tire Specifications

PositionTire SizePressureLoad IndexSpeed Rating
All235/35ZR20 (88Y)Door Placard
All265/35ZR20 (95Y)Door Placard

GTS, Standard Trans

Tire Specifications

PositionTire SizePressureLoad IndexSpeed Rating
All235/35ZR20 (88Y)Door Placard
All265/35ZR20 (95Y)Door Placard

S, Standard Trans

Tire Specifications

PositionTire SizePressureLoad IndexSpeed Rating
All235/40ZR19 (92Y)Door Placard
All265/40ZR19 (98Y)Door Placard

S, Automatic DCT Trans

Tire Specifications

PositionTire SizePressureLoad IndexSpeed Rating
All235/40ZR19 (92Y)Door Placard
All265/40ZR19 (98Y)Door Placard

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Frequently Asked Questions

What size tires does a 2015 Porsche Boxster take?

It depends on the trim: Base, Standard Trans uses 235/45ZR18 94Y; Base, Automatic DCT Trans uses 235/45ZR18 94Y; GTS, Automatic DCT Trans uses 235/35ZR20 (88Y); GTS, Standard Trans uses 235/35ZR20 (88Y); S, Standard Trans uses 235/40ZR19 (92Y); S, Automatic DCT Trans uses 235/40ZR19 (92Y).

What is the tire pressure for a 2015 Porsche Boxster?

Refer to the tire pressure placard on your vehicle's driver side door jamb for exact cold inflation pressures.

What is the bolt pattern on a 2015 Porsche Boxster?

Bolt pattern data is available in the factory service manual.

Other Porsche Boxster Years

Other Porsche Models