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Porsche 987 Boxster Wheel & Tire Fitment Guide

Porsche 987 Boxster Wheel & Tire Fitment Guide

Originally published | 04/11/2018 - Updated | 08/18/2026

Are you looking for the best source of wheel and tire fitment information available for the 2005-2012 987 Porsche Boxster? Well look no further than our 987 Boxster Wheel and Tire fitment Guide. This guide applies to all 987 Boxster trims be it Base, S, or Spyder models.

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White Porsche 987 Boxster Spyder with 18" SM-10 Apex wheels in Satin Black
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Porsche 987 Boxster Wheel & Tire Fitment Guide

Porsche 987 Boxster Wheel & Tire Fitment Guide

Originally published | 04/11/2018 - Updated | 08/18/2026

White Porsche 987 Boxster Spyder with 18" SM-10 Apex wheels in Satin Black

Are you looking for the best source of wheel and tire fitment information available for the 2005-2012 987 Porsche Boxster? Well look no further than our 987 Boxster Wheel and Tire fitment Guide. This guide applies to all 987 Boxster trims be it Base, S, or Spyder models.

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OEM+ Wheel Fitment

Easy upgrades for street-driven cars

These bolt-on wheel fitments are ideal for enthusiasts enjoying their car day-to-day on the street, and they are typically paired with all-season or performance-oriented summer tires.

  • White Porsche Boxster - SM-10 in Satin Black
    White Porsche Boxster - SM-10 in Satin Black
    Porsche Boxster 987 Boxster
  • Black Porsche Boxster - SM-10 in Race Silver
    Black Porsche Boxster - SM-10 in Race Silver
    Porsche Boxster 987 Boxster
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OEM+

Wheel Sizes

F:
18x8.5" ET45
R:
18x10" ET36

Tire Sizes

F:
245/40-18
R:
275/40-18

Scoring

9.8
Ease of fit10
Performance9
Tire Availability10

Fitment Overview

This is our most OEM-like fitment available to the 987 Boxster, offering OEM Boxster Spyder wheel widths, just in an 18" diameter. Use with either the 245/40-18 and 275/40-18 staggered tire sizes or the OEM 235/40-18 and 265/40-18 staggered sizes.

Fitment Notes

  • Direct Fit - This fitment requires no changes or modifications to work with the primary tire sizes recommended.

  • Staggered - This fitment features wider wheels and tires on the rear of the car.

Tire Information

Recommended size
F:245/40-18
R:275/40-18
Show popular tire models
Alternative size
F:235/40-18 R:265/40-18

  • Matches the stock tire sizes

Show popular tire models
Available in this fitment

Evolution line

Starting at

SM-10$474
SM-10 in Anthracite finishSM-10 in Race Silver finishSM-10 in Satin Black finishSM-10 in Satin Bronze finish
Configure Wheel

Performance Street and Track Wheel Fitment

Dual-duty fitments for enhanced performance

These wheel & tire configurations are ideal for enthusiasts looking for a more dramatic improvement in performance and they are typically paired with performance-oriented summer tires or track-oriented R-compounds.

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Performance Street and Track
Popular

Wheel Sizes

F:
18x9" ET46
R:
18x10" ET36

Tire Sizes

F:
245/40-18
R:
275/40-18

Scoring

10
Ease of fit10
Performance10
Tire Availability10

Fitment Overview

The most popular fitment for our 987 Customers. The wider front wheel offers more sidewall support for your performance tires in 245 or 255 widths. These sizes still clear all OEM suspension components and many of the coilover kits and other suspension arms that are so popular on this platform. Tire availability is great here, with many street and track tires to choose from.

Fitment Notes

  • Staggered - This fitment features wider wheels and tires on the rear of the car.

Tire Information

Recommended size
F:245/40-18
R:275/40-18
Show popular tire models
Alternative size
F:245/35-18 R:275/35-18

  • Shorter tire heights

Show popular tire models
F:255/35-18 R:275/35-18

  • Front Camber Plates with additional negative camber are required.

Show popular tire models
Available in this fitment

NaN/8

Hardcore Track Wheel Fitment

Track focused fitments that require significant modifications

These wheel and tire configurations are best suited for hardcore track junkies and club racers competing for a spot on the podium.

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Hardcore Track

Wheel Sizes

F:
18x9" ET46
R:
18x10" ET36

Tire Sizes

F:
245/35-18
R:
275/35-18

Scoring

8
Ease of fit10
Performance10
Tire Availability2

Fitment Overview

The same wheel sizes as the fitment we list in Performance Street and Track, but with different tire options. This fitment features semi-slick tires like Hoosiers as well as full slicks like the Pirelli DH. These wider slick options generally require some more targeted modification that your typical street car would want to avoid, but easily work on a dedicated track car.

Fitment Notes

  • Staggered - This fitment features wider wheels and tires on the rear of the car.

Tire Information

Recommended size
F:245/35-18
R:275/35-18
Show popular tire models
Alternative size
F:245/40-18 R:275/40-18
Show popular tire models
F:255/35-18 R:275/35-18

  • Front Camber Plates with additional negative camber are required.

Show popular tire models
F:245/645-18 R:265/660-18

  • Front Camber Plates with additional negative camber are required.

F:265/645-18 R:305/660-18

  • Front Camber Plates with additional negative camber are required.

  • Front & Rear fender rolling typically required

Available in this fitment

NaN/8

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