The 2011 Subaru Impreza sits at an interesting point in the model’s history, spanning practical all-wheel-drive daily transportation, the wagon-like Outback Sport, and the far more aggressive WRX and WRX STI performance variants. That broad range is exactly why tire selection for this Impreza starts with the exact sub-model rather than the nameplate alone. Depending on configuration, the primary fitment moves from 205/55R16 up to 245/40R18, and every listed fitment uses radial construction. Available choices also vary from straightforward blackwall performance-oriented tires to wide whitewall, redline, and raised white letter options in certain sizes. Getting the right tire means matching the size, wheel diameter, and intended look or driving use to your specific Impreza.
Which Tire Size Is Right for The 2011 Subaru Impreza
The 2011 Subaru Impreza uses four primary tire sizes, and they are tied directly to sub-model and wheel diameter. That makes the first step simple but important: confirm whether the car is a 2.5i, 2.5i Premium, Outback Sport, WRX, or WRX STI, then verify whether it is riding on 16-inch, 17-inch, or 18-inch wheels. Once that is settled, the decision shifts to tire series, sidewall style, and the kind of road use or appearance you want.
205/55R16 is a metric radial size where 205 is the nominal section width in millimeters, 55 is the aspect ratio, R denotes radial construction, and 16 is the wheel diameter in inches. On the 2011 Subaru Impreza, this size serves the 2.5i and 2.5i Premium and fits the most comfort- and everyday-use-oriented end of the lineup. Available choices include BFGoodrich, Michelin, and American Classic, with both blackwall and wide whitewall presentations. This size is the right place to focus if your Impreza uses 16-inch wheels and you want to balance correct fitment with either a contemporary or more distinctive visual style.
205/50R17 follows the same metric radial sizing system, with a 205-millimeter nominal width, a 50-series profile, radial construction, and a 17-inch rim diameter. For the 2011 Subaru Impreza, this size is used by the Outback Sport, so it should not be treated as a universal 17-inch Impreza fitment. Product choices include BFGoodrich, American Classic, and Vredestein, with blackwall options and a wide whitewall alternative. This size deserves a closer look when the goal is to keep the Outback Sport on its proper wheel diameter while choosing between sport-oriented tread families and a more unusual appearance treatment.
235/45R17 is a wider metric radial size that uses a 235-millimeter nominal section width, a 45-series profile, and a 17-inch wheel diameter. On the 2011 Subaru Impreza, it belongs to WRX summer-tire applications, including the WRX, WRX Limited, and WRX Premium, so it carries a more performance-focused fitment role than the narrower 17-inch size. Available options center on blackwall tires from BFGoodrich and Nitto across several series. This is the size to evaluate when your WRX uses the factory-type 17-inch summer setup and you want to compare tire character without moving away from the intended fitment category.
Fit(s): WRX STI (Summer Tires) and WRX STI Limited (Summer Tires)
Construction: Radial|Rim: 18 in
245/40R18 is the largest primary fitment in this Impreza range, combining a 245-millimeter nominal width, a 40-series profile, radial construction, and an 18-inch rim. It is used on WRX STI summer-tire applications, including the WRX STI and WRX STI Limited, and it reflects the more serious wheel-and-tire package tied to those versions. Choices include BFGoodrich, Nitto, M&H Racemaster, and Pro-Trac, with blackwall, redline, and raised white letter sidewall styles. This size matters most when preserving the STI’s intended wheel diameter and selecting a tire that matches either performance-focused use or a more custom visual presentation.
Sub-model fitment varies across the 2011 Subaru Impreza lineup, so tire selection depends on identifying the exact version of the car first. The range spans 16-inch, 17-inch, and 18-inch wheel diameters, and the WRX and WRX STI summer-tire applications move into wider performance-oriented sizes.
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2011 Subaru Impreza 2.5i
The 2011 Subaru Impreza 2.5i uses a 205/55R16 radial tire. Tire selection here is mostly about staying with the correct 16-inch fitment while choosing among blackwall and wide whitewall options that suit either a straightforward daily-driver look or a more distinctive presentation.
The 2011 Subaru Impreza 2.5i Premium also uses the 205/55R16 radial size. That keeps fitment simple, so the main comparison points become tire series, sidewall appearance, and confirming that the wheel setup has not been changed from the intended 16-inch diameter.
The 2011 Subaru Impreza Outback Sport uses a 205/50R17 radial tire. That makes wheel-diameter confirmation important, since this sub-model does not share the 16-inch base-car size or the wider WRX 17-inch summer fitment.
The 2011 Subaru Impreza WRX (Summer Tires) uses a 235/45R17 radial tire. Choosing within this fitment is less about alternate sizing and more about selecting the right 17-inch performance-oriented tire series for the car’s intended street use and overall setup.
The 2011 Subaru Impreza WRX Limited (Summer Tires) uses the same 235/45R17 radial size as other WRX summer-tire applications. That means the focus should stay on matching the 17-inch wheel package and comparing available blackwall performance tire options rather than mixing in other Impreza sizes.
The 2011 Subaru Impreza WRX Premium (Summer Tires) also uses 235/45R17 radials. Tire choice here centers on preserving the correct summer-tire size and checking wheel width and vehicle setup carefully before considering any departure from that established fitment.
The 2011 Subaru Impreza WRX STI (Summer Tires) uses a 245/40R18 radial tire. This fitment opens up the broadest appearance spread, including blackwall, redline, and raised white letter choices, but it also makes 18-inch wheel confirmation essential before selecting a tire.
2011 Subaru Impreza WRX STI Limited (Summer Tires)
The 2011 Subaru Impreza WRX STI Limited (Summer Tires) uses the same 245/40R18 radial size as the WRX STI. Tire selection should stay centered on that 18-inch fitment while weighing performance-oriented product differences against the visual effect of the available sidewall treatments.
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 2011 Subaru Impreza Tires for Sale
Available 2011 Subaru Impreza tire choices span BFGoodrich, Michelin, American Classic, Vredestein, Nitto, M&H Racemaster, and Pro-Trac across four primary radial sizes. Depending on the fitment, the product grid includes blackwall, wide whitewall, redline, and raised white letter sidewalls along with several performance-oriented tire series.
For the 2011 Subaru Impreza, the most important tire questions center on sub-model-specific sizing, wheel diameter, summer-tire fitments on WRX models, and how to compare available brands, sidewall styles, and maintenance checks before road use.
Tire Size & Fitment
What tire size fits a 2011 Subaru Impreza?
The 2011 Subaru Impreza uses four different primary tire sizes: 205/55R16, 205/50R17, 235/45R17, and 245/40R18. The correct size depends on the exact sub-model, with 2.5i and 2.5i Premium using 205/55R16, Outback Sport using 205/50R17, WRX summer-tire versions using 235/45R17, and WRX STI summer-tire versions using 245/40R18.
That means the Impreza name alone is not enough to select tires correctly. Start by confirming the sub-model and then verify the actual wheel diameter currently on the car, especially if it has been modified or purchased used. Once those two points match, you can compare tire series, sidewall style, and other product details within the proper size.
What size rim does a 2011 Subaru Impreza use?
A 2011 Subaru Impreza can use 16-inch, 17-inch, or 18-inch wheels depending on the sub-model and tire size. The 205/55R16 fitment uses a 16-inch rim, both 205/50R17 and 235/45R17 use 17-inch rims, and 245/40R18 uses an 18-inch rim.
Wheel diameter is the first hard fitment check because the tire must match it exactly. A 17-inch tire cannot be mounted on a 16-inch or 18-inch wheel, even if the car is still a 2011 Impreza. After confirming diameter, compare wheel width and make sure the current wheel-and-suspension setup still matches the tire size you intend to run.
Do all 2011 Subaru Impreza sub-models use the same tire size?
No, the 2011 Subaru Impreza does not use one shared tire size across all sub-models. The 2.5i and 2.5i Premium use 205/55R16, the Outback Sport uses 205/50R17, WRX summer-tire models use 235/45R17, and WRX STI summer-tire models use 245/40R18.
That spread reflects meaningful differences in wheel package and intended use across the lineup. It is important to identify the exact sub-model before choosing tires, because two Imprezas from the same year may both wear 17-inch wheels yet use different widths and profiles. A quick check of the existing tire sidewall and wheel diameter helps prevent ordering the wrong fitment.
Choosing the Right Tire
What should I consider when choosing a 2011 Subaru Impreza tire?
Start with the exact tire size and wheel diameter for your specific 2011 Subaru Impreza sub-model. From there, compare the available tire series, radial construction details, sidewall style, and any useful specification differences such as rim-width range, load capacity, or tire weight where those details are given.
The right choice depends on how the car is used and how you want it to look. A 2.5i owner may focus on everyday road manners or even a wide whitewall presentation, while a WRX or STI owner may care more about staying within the intended summer-tire fitment category. Matching the tire to the car’s actual wheels is just as important as selecting the correct nominal size.
What sidewall styles are available for 2011 Subaru Impreza tires?
Sidewall style depends on the tire size. Across the available 2011 Subaru Impreza fitments, the choices include blackwall, wide whitewall, redline, and RWL, which is a raised white letter sidewall. Blackwall is the most common treatment, while the more appearance-focused options appear in selected sizes.
That gives the Impreza owner room to choose between a clean modern look and something much more distinctive. Sidewall style should still come after fitment, not before it, since a visual preference does not override the required size and wheel diameter for the sub-model. Once the correct size is confirmed, sidewall treatment becomes an easy way to shape the car’s overall presentation.
What brands offer tires for the 2011 Subaru Impreza?
Available brands for the 2011 Subaru Impreza include BFGoodrich, Michelin, American Classic, Vredestein, Nitto, M&H Racemaster, and Pro-Trac. The exact brand mix depends on tire size, so the choices in 205/55R16 are not the same as the choices in 245/40R18.
Brand comparison works best after the correct fitment is locked in. A smaller base-model size may offer a wider mix of visual styles, while a WRX or STI size may lean harder toward performance-oriented series. It helps to compare each brand’s available sidewall treatment, rim-width compatibility, and general tire character within the exact size your Impreza uses.
Restoration & Appearance
Which tire should I choose for a period-style 2011 Subaru Impreza?
A period-style 2011 Subaru Impreza still starts with the proper tire size for the exact sub-model, since the lineup spans 16-inch through 18-inch wheel packages. Once the correct size is set, the visual direction can come from the tire series and sidewall treatment available in that fitment, including blackwall, wide whitewall, redline, or raised white letter options in certain sizes.
For a restoration-oriented or era-appropriate look, appearance should be balanced with how the car will actually be driven. A clean blackwall often suits the Impreza’s original-era character, while bolder sidewall treatments create a more customized presentation. If exact originality matters, compare the tire choice against photographs, original sales literature, and marque-specific references before making a final decision.
How does tire construction affect the appearance of a restored 2011 Subaru Impreza?
For the 2011 Subaru Impreza, all primary fitments here are radial, so construction choice is not a bias-ply-versus-radial restoration question. Appearance is shaped more by the correct size, the wheel diameter, and the available sidewall style within that radial fitment than by a change in construction type.
That makes visual consistency easier to manage, especially on a newer collector-era car where wheel-and-tire proportion matters to the overall stance. A tire that is the right size but carries a dramatically different sidewall treatment can change the car’s personality quickly. Keeping the sub-model-correct fitment in place usually does more for an authentic look than chasing an unusual style first.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2011 Subaru Impreza?
Yes, modifications can affect tire fitment on a 2011 Subaru Impreza even when the tire size matches a known factory-type application. Aftermarket wheels, suspension changes, lowering, alignment changes, or body alterations can all change clearance and can also alter whether the wheel width remains appropriate for the tire being considered.
That matters especially on WRX and WRX STI models, where the fitments are already wider and lower in profile. A used Impreza may no longer be on its original wheel package, so it is smart to confirm the wheel diameter and width before ordering tires. Checking steering lock, strut clearance, and fender space helps avoid surprises after mounting.
What should I inspect before driving a 2011 Subaru Impreza on new tires?
Before driving a 2011 Subaru Impreza on new tires, inspect the wheels for damage, confirm the tire size matches the car’s sub-model and wheel diameter, and verify that the tires are seated and inflated properly. It is also wise to look over suspension and steering components, since worn parts can affect how a fresh set of tires behaves.
A short follow-up inspection after the first miles is just as useful. Recheck air pressure, look for any rubbing marks, and make sure the car tracks normally without vibration or pull. On a WRX or STI fitment, wider tires make clearance and alignment condition especially important, so catching a problem early can protect both the tires and the chassis.
How should 2011 Subaru Impreza tires be maintained?
2011 Subaru Impreza tires should be maintained with regular pressure checks, routine visual inspections, and close attention to tread condition and uneven wear. Sidewall cracking, bulges, cuts, or recurring air loss deserve prompt attention, and lower-use cars still need inspection because age and storage conditions can affect tires even when mileage stays modest.
Good maintenance starts with using the correct size for the sub-model and keeping the wheel-and-suspension setup in proper condition. Storage matters too, especially for collector-kept cars that sit for long periods. Keeping the vehicle away from prolonged heat, direct sunlight, and ozone sources helps preserve the tires, while periodic movement can reduce long-term flat spotting.