The 2006 Subaru Legacy sits in the middle of Subaru’s modern all-wheel-drive sedan and wagon tradition, blending practical year-round usability with a more performance-minded edge in GT and spec.B form. For many owners, that means tire choice is tied closely to the exact trim level rather than the model name alone. This Legacy uses three primary radial tire sizes: 205/50R17, 215/45R17, and 215/45R18. Available choices range from blackwall performance-oriented series to a 205/50R17 wide whitewall option for a more distinctive look. The key is matching the correct size to the exact sub-model first, then choosing the tire character that suits restoration style, daily driving, or sportier road use.
Which Tire Size Is Right for The 2006 Subaru Legacy
Three primary tire sizes apply to the 2006 Subaru Legacy, and they are tied directly to sub-model and wheel diameter. Most trims use a 17-inch wheel, but the Legacy GT spec.B uses an 18-inch setup, so the first step is confirming the exact sub-model and wheel size before comparing tire options, sidewall style, or performance-oriented series.
Fit(s): 2.5i, 2.5i Limited, and 2.5i Special Edition
Construction: Radial|Rim: 17 in
A 205/50R17 tire uses a 205 millimeter section width, a 50-series aspect ratio, radial construction, and a 17-inch rim diameter. On the 2006 Subaru Legacy, this size serves the 2.5i, 2.5i Limited, and 2.5i Special Edition, making it the main fitment for the non-GT group. Available choices include BFGoodrich, American Classic, and Vredestein, with blackwall options joined by a wide whitewall version for a different visual treatment. This size makes the selection process less about fitment variety and more about matching tire style and intended use to the car’s specific role.
A 215/45R17 tire is slightly wider than a 205 section tire, uses a 45-series profile, radial construction, and mounts on a 17-inch rim. This size applies to the 2006 Subaru Legacy GT, where the lower profile helps define a different tire character from the standard 2.5i models. Product choices center on BFGoodrich blackwall performance-oriented series, including g-Force Sport Comp 2, g-Force Comp 2 AS, and g-Force Phenom T/A. It is the right size to evaluate when the car is specifically a GT and still carries the matching 17-inch wheel setup.
A 215/45R18 tire keeps the same nominal section width and aspect ratio as 215/45R17, but it is built for an 18-inch rim instead of a 17-inch wheel. On the 2006 Subaru Legacy, this size belongs to the GT spec.B, so wheel diameter confirmation matters before anything else. Available options include BFGoodrich blackwall radial tires in the g-Force Comp 2 AS and g-Force Phenom T/A series. This is the size to focus on when preserving the spec.B wheel and tire relationship rather than adapting the car to a different Legacy trim setup.
Sub-model fitment matters on the 2006 Subaru Legacy because the tire size changes across the 2.5i, GT, and GT spec.B lineup. Once the exact trim is confirmed, the correct tire decision becomes much more straightforward because each covered sub-model uses one primary radial size.
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2006 Subaru Legacy 2.5i
The 2006 Subaru Legacy 2.5i uses a 205/50R17 radial tire on a 17-inch wheel. That keeps the focus on choosing among available blackwall or wide whitewall styles rather than sorting through multiple fitment combinations.
The 2006 Subaru Legacy 2.5i Limited also uses the 205/50R17 radial size. Tire selection is mainly about the driving character and appearance you want while staying with the correct 17-inch fitment.
The 2006 Subaru Legacy 2.5i Special Edition uses the same 205/50R17 radial tire size as the other 2.5i variants. That shared fitment makes replacement simpler, with the main choices coming from brand, sidewall presentation, and tire series.
The 2006 Subaru Legacy GT uses a 215/45R17 radial tire. That makes wheel and trim confirmation important, because this lower-profile 17-inch fitment differs from the 2.5i models and leads to a narrower group of blackwall performance-style choices.
The 2006 Subaru Legacy GT spec.B uses a 215/45R18 radial tire. Its 18-inch wheel requirement sets it apart from the rest of the Legacy range, so confirming the wheel setup is the first step before comparing the available blackwall tire series.
The tire sizes listed on this page assume factory-standard vehicle configuration. The following modifications may affect tire fitment and are not reflected in this guide:
Suspension changes (lowering, lift kits, spring replacements)
Body alterations (fender modifications, custom bodywork)
If your vehicle has been modified from factory specifications, verify tire clearance before purchase.
Best 2006 Subaru Legacy Tires for Sale
Available 2006 Subaru Legacy tires center on radial fitments from BFGoodrich, with American Classic and Vredestein options in 205/50R17. Buyers can compare blackwall performance-oriented series across all sizes, while 205/50R17 also adds a wide whitewall choice for a more distinctive presentation.
Common 2006 Subaru Legacy tire questions usually come down to trim-specific sizing, 17-inch versus 18-inch wheel fitment, blackwall versus wide whitewall appearance, and how to choose the right radial tire for the way the car is driven and maintained.
Tire Size & Fitment
What tire size fits a 2006 Subaru Legacy?
The 2006 Subaru Legacy uses three primary tire sizes: 205/50R17, 215/45R17, and 215/45R18. The 2.5i, 2.5i Limited, and 2.5i Special Edition use 205/50R17, the Legacy GT uses 215/45R17, and the GT spec.B uses 215/45R18.
The model name alone is not enough to choose tires for this Legacy, because trim level changes the size and sometimes the wheel diameter. Checking the exact sub-model and the wheels currently on the car helps prevent ordering a 17-inch tire for an 18-inch wheel, or choosing a non-GT size for a GT setup.
What size rim does a 2006 Subaru Legacy use?
A 2006 Subaru Legacy uses either a 17-inch or 18-inch rim, depending on sub-model. The 205/50R17 and 215/45R17 fitments use 17-inch rims, while the 215/45R18 fitment for the Legacy GT spec.B uses an 18-inch rim.
Rim diameter is the first fitment detail to verify because a tire must match the wheel’s diameter exactly. Looking at the wheel, the existing tire size, and the exact trim usually settles the question quickly, especially on cars that may have had wheel swaps or aftermarket upgrades at some point.
Why does the 2006 Subaru Legacy have more than one tire size?
The 2006 Subaru Legacy has more than one tire size because different sub-models use different wheel and tire packages. The 2.5i family uses 205/50R17, the GT uses 215/45R17, and the GT spec.B moves to 215/45R18.
That means tire selection starts with confirming the trim and the wheels actually installed on the car rather than treating every Legacy the same. A Legacy that has been modified or fitted with different wheels may no longer match its original trim-based size, so the current wheel diameter and available clearance should be checked before replacement.
Choosing the Right Tire
What should I consider when choosing a 2006 Subaru Legacy tire?
Start with the correct size for the exact sub-model, since the 2006 Subaru Legacy uses three different radial fitments. After size is confirmed, compare tire series, sidewall style, rim-width compatibility, and details such as load capacity or overall tire weight when those differences matter to your intended use.
A 2.5i owner may be deciding between a blackwall tire and a wide whitewall look in 205/50R17, while a GT or spec.B owner is more likely comparing blackwall performance-oriented series. Matching the tire to the car’s trim, wheel setup, appearance goals, and driving habits leads to a better choice than shopping by size alone.
What sidewall styles are available for 2006 Subaru Legacy tires?
Blackwall is the main sidewall style available across the 2006 Subaru Legacy tire sizes, and 205/50R17 also has a wide whitewall option. That gives the 2.5i-based trims the broadest appearance choice, while the GT and GT spec.B sizes stay focused on blackwall radial offerings.
Sidewall style changes the car’s visual character even when the tire size stays correct. A blackwall presentation suits a more modern or performance-oriented look, while a wide whitewall creates a more distinctive custom or retro-inspired appearance, so the choice should reflect how the Legacy is being presented as much as how it is being driven.
What brands offer tires for the 2006 Subaru Legacy?
BFGoodrich is available across all three 2006 Subaru Legacy tire sizes, while American Classic and Vredestein appear in 205/50R17. That means the broadest brand variety is found on the 2.5i family fitment, with the GT and GT spec.B sizes centered on BFGoodrich radial choices.
Brand is only one part of the decision, because tire series, sidewall style, and wheel compatibility can matter just as much. Comparing the exact size first, then narrowing by visual style and intended driving use, usually gives a clearer result than choosing by brand name before confirming the Legacy’s trim-specific fitment.
Restoration & Appearance
Which tire should I choose for a period-style 2006 Subaru Legacy?
A period-style 2006 Subaru Legacy should still begin with the correct trim-specific size: 205/50R17, 215/45R17, or 215/45R18. After that, the right choice depends on whether the goal is a clean modern blackwall look or, in 205/50R17, a more distinctive wide whitewall presentation.
Because this is a modern-era Legacy rather than an earlier classic, appearance usually comes down to preserving the trim’s overall character instead of chasing a vintage tire style. Owners focused on originality should compare the current wheel-and-tire setup to period sales material, photos, or marque-specific references before making a visual change.
How does tire construction affect the appearance of a restored 2006 Subaru Legacy?
Tire construction is straightforward on the 2006 Subaru Legacy because the primary fitments are radial across all covered sub-models. The visual difference comes less from bias-ply versus radial choice and more from sidewall treatment, tire series, and whether the car keeps its correct 17-inch or 18-inch wheel relationship.
That makes size and stance especially important on a restoration-minded car. A Legacy that keeps the proper trim-based tire size generally looks more settled and intentional, while a different wheel diameter or sidewall style can shift the car toward a more customized appearance even if the tire still falls within a usable fitment range.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2006 Subaru Legacy?
Yes, modifications can affect tire fitment on a 2006 Subaru Legacy. Aftermarket wheels, suspension changes, lowering, or body alterations can change the wheel diameter, width, and clearance relationships that the original 205/50R17, 215/45R17, or 215/45R18 fitments were built around.
A Legacy that no longer carries its original wheel setup should be checked carefully before replacement tires are chosen. Wheel diameter must match the tire exactly, and wheel width, inner clearance, outer fender space, and steering travel all deserve attention so the next set supports the car’s current configuration rather than just its original trim name.
What should I inspect before driving a 2006 Subaru Legacy on new tires?
Before driving a 2006 Subaru Legacy on new tires, inspect the wheels for damage, confirm the tire size matches the trim and rim diameter, and check that the tires are inflated properly. It also helps to look over tread seating, valve stems, and the general condition of suspension and steering components.
A careful walkaround after installation can catch rubbing, uneven stance, or clearance issues before they become road problems. Collector-owned or lightly used cars deserve extra attention because long storage can hide cracked bushings, weak shocks, or alignment issues that affect how a fresh set of radial tires behaves once the car is back in regular motion.
How often should tires on a 2006 Subaru Legacy be inspected?
Tires on a 2006 Subaru Legacy should be inspected regularly, especially before longer drives and after long storage periods. Look for air loss, irregular tread wear, cuts, bulges, cracking, and any signs that the tire is contacting suspension parts, inner liners, or fender edges.
Routine checks matter even more on a car that is driven infrequently, because age and storage conditions can affect tire condition before tread wears out. Monitoring pressure, visual condition, and wear pattern helps catch alignment or fitment concerns early, which is especially useful on a Legacy where multiple trim-specific sizes and wheel diameters are involved.
