What bolt pattern is STI?
The STI lineup predominantly uses a 5-lug, 100-mm bolt circle, commonly written as 5x100, for wheel mounting.
In practice, this means most Subaru WRX and WRX STI models share the same basic bolt pattern, which influences wheel compatibility across years and markets. While 5x100 is the standard, always confirm the exact specification for your specific model year and trim before buying wheels or adapters.
Standard STI bolt-pattern specs
Why this matters
Before listing the typical specs, it’s important to note that there can be slight variations by year, market, or special edition. The following items reflect the standard configuration used on recent Subaru STI/WRX models.
- Bolt pattern: 5 lug holes on a 100 mm bolt circle (5x100)
- Center bore: 56.1 mm (for proper hub centering on most Subaru hubs)
- Lug nut size and seat: typically M12x1.25 with a 60-degree conical seat
With these specifications in mind, you can assess wheel compatibility, including aftermarket wheels, spacers, and hub-centric rings. Always verify against the exact model year and market to avoid fitment issues.
Summary
In short, STI vehicles predominantly use a 5x100 bolt pattern (5 lug, 100 mm circle) with a 56.1 mm center bore and typical M12x1.25 lug nuts. Always check the precise specifications for your car’s year and region, and consult official Subaru documentation or a dealership to confirm before purchasing wheels or adapters.
What is the bolt pattern on a 2007 Subaru STI?
The 2007 Subaru Impreza WRX STI has a 5x114.3 bolt pattern, which was a change from previous generations. This means there are 5 lug nut holes spaced in a circle with a diameter of 114.3mm. For comparison, the 2007 WRX and other standard Impreza models of that year typically have a 5x100 bolt pattern.
- 2007 WRX STI: 5x114.3
- 2007 WRX: 5x100
What is the bolt pattern on a 2004 Subaru STI?
All Subaru Impreza WRX through 2014, the 2004 WRX STi, and standard Impreza models use a 5x100 bolt pattern. Everything else uses a 5x114. 3 bolt pattern.
Is WRX 5x114 3?
15+ WRX (VA and VB chassis) are 5x114. 3 .. all the previous WRXs are 5x100 ..
What is the bolt pattern on a STI wheel?
Most modern Subaru WRX STI models (from 2015 onwards) use a 5x114.3 bolt pattern, a very common and strong standard. For older models, such as the 2004-2005 WRX STI, the bolt pattern was also 5x114.3, which differs from the 5x100 bolt pattern used on some non-STI Impreza models from the same era. The lug thread is typically M12x1.25 and the center bore is 56.1mm.
This video explains STI wheel fitment, including bolt patterns: 1mChaparral MotorsportsYouTube · Mar 24, 2019
- 5x114.3: This is the most common bolt pattern for most modern STI models, particularly from 2004 onwards.
- 5x100: This is the bolt pattern used on some non-STI Impreza models and some older WRX models.
- Lug Thread: M12x1.25 is the standard lug thread size.
- Center Bore: 56.1mm is the standard center bore size.
- Lug Torque: The recommended lug torque is 89 ft-lbs.
