83
/ 100
Objective (60%)
–/100
No test data yet
User signal (40%)
77/100
258 owner reviews
Prices change daily — check the retailer for your size.
Head-to-head
Updated September 2026
Kumho Ecsta PS31 vs Kumho Ecsta PS91 — Compared (September 2026)
Our Relative Score blends 60% objective test data with 40% owner-review signal — so any two tires can be compared even if they were never tested on the same day.
VS
71
/ 100
Objective (60%)
70/100
3 professional tests
User signal (40%)
70/100
56 owner reviews
Prices change daily — check the retailer for your size.
VerdictWinner: Kumho Ecsta PS31 — better comfort, treadwear and dry. It leads or ties in every category we score.
Read full
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Category breakdown
7 categories, side by side
Each bar is the Relative Score for that category. Expand a tile to see the test results and owner ratings behind it.
Dry
Score (0–100)
Ecsta PS31 leads by 4
Why this score
| Source | Ecsta PS31 | Ecsta PS91 |
|---|---|---|
| Professional tests (TWG score) | – | 81 |
| Tire Rack owners | 85 | 87 |
| Tyre Reviews owners | 83 | 82 |
| SimpleTire owners | 93 | – |
Wet
Score (0–100)
Ecsta PS31 leads by 3
Why this score
| Source | Ecsta PS31 | Ecsta PS91 |
|---|---|---|
| Professional tests (TWG score) | – | 80 |
| Tire Rack owners | 81 | 77 |
| Tyre Reviews owners | 78 | 73 |
| SimpleTire owners | 87 | – |
Snow
Score (0–100)
Why this score
| Source | Ecsta PS31 | Ecsta PS91 |
|---|---|---|
| SimpleTire owners | 79 | – |
Comfort
Score (0–100)
Ecsta PS31 leads by 31
Why this score
| Source | Ecsta PS31 | Ecsta PS91 |
|---|---|---|
| Professional tests (TWG score) | – | 37 |
| Tire Rack owners | 84 | 80 |
| Tyre Reviews owners | 78 | 73 |
| SimpleTire owners | 89 | – |
Noise
Score (0–100)
Ecsta PS31 leads by 2
Why this score
| Source | Ecsta PS31 | Ecsta PS91 |
|---|---|---|
| Professional tests (TWG score) | – | 87 |
| SimpleTire owners | 89 | – |
Treadwear
Score (0–100)
Ecsta PS31 leads by 24
Why this score
| Source | Ecsta PS31 | Ecsta PS91 |
|---|---|---|
| Tire Rack owners | 82 | 64 |
| Tyre Reviews owners | 75 | 55 |
| SimpleTire owners | 88 | – |
Handling
Score (0–100)
Ecsta PS31 leads by 4
Why this score
| Source | Ecsta PS31 | Ecsta PS91 |
|---|---|---|
| Tyre Reviews owners | 79 | 75 |
| DriverReviews owners | – | 80 |
Scores at a glance
| Category | Kumho Ecsta PS31 | Kumho Ecsta PS91 |
|---|---|---|
| Relative Score | 83 | 71 |
| Dry | 86 | 82 |
| Wet | 81 | 78 |
| Snow | 79 | – |
| Comfort | 83 | 52 |
| Noise | 89 | 87 |
| Treadwear | 81 | 57 |
| Handling | 79 | 75 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
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Wet grip and treadwear start at “Important” — the two things buyers rank highest. Move the sliders and the scores update instantly.
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Recomputed
Headline score
83
/ 100
Tire A
71
/ 100
Tire B
Only categories both tires have data for count toward the headline score.
From owners
Pros, cons & observations
Themes extracted from owner reviews across retailers and review sites — not the opinion of TireWheelGuide.
The Kumho Ecsta PS31 is widely regarded as a high-value, budget-friendly performance tire that excels in daily driving comfort and quietness. While it offers impressive dry grip and reliable wet weather performance for most drivers, enthusiasts often note that its soft sidewalls result in less steering precision and reduced feedback during aggressive cornering compared to premium ultra-high-performance alternatives.
Pros
- Excellent price-to-performance ratio
- High levels of ride comfort and low road noise
- Strong dry traction for daily and spirited street driving
- Predictable and capable wet weather performance for most conditions
Cons
- Soft sidewalls lead to vague steering response and 'squirm' during aggressive maneuvers
- Inconsistent wet weather performance reported by some users, particularly in deep standing water
- Tread life can be shorter than expected for some driving styles
- Increased noise levels as the tire wears down
Observations
- Users with smaller, lighter vehicles (e.g., Mazda Miata, Honda Civic) often praise the comfort and value, while those with heavier or more powerful vehicles report more pronounced sidewall flex and handling vagueness.
- Drivers running low-profile sizes on rough roads report a higher susceptibility to sidewall bubbles and damage from potholes, suggesting a need for road hazard coverage.
- The tire is frequently noted as a significant upgrade in comfort and noise reduction when replacing OEM run-flat tires.
The Kumho Ecsta PS91 is widely regarded as a high-value performance tire that offers impressive dry grip and steering feedback, often rivaling more expensive premium brands. However, user consensus is polarized regarding tread longevity, with many owners reporting premature wear, and some experiencing inconsistent performance in wet conditions or issues with sidewall durability.
Pros
- Excellent dry weather grip and cornering stability
- High value-for-money proposition compared to premium competitors
- Stiff sidewalls provide sharp, responsive steering feedback
- Quiet and comfortable ride quality for a performance-oriented tire
Cons
- Rapid and premature tread wear, particularly on heavier or high-torque vehicles
- Inconsistent wet weather performance and aquaplaning susceptibility
- Reports of sidewall cracking or deformation after moderate use
- Tendency to tramline or follow road ruts on highway surfaces
Observations
- Owners of heavy, high-torque vehicles (e.g., BMW 5-series, performance saloons) frequently report significantly accelerated tread wear.
- BMW and Mini owners transitioning from factory run-flat tires often praise the PS91 for improved comfort and steering feel due to its specific sidewall construction.
- Some users noted that the tire's actual width when inflated can be narrower than the nominal size, leading to fitment or aesthetic concerns.
Community buzz
What real owners are saying
From Reddit, forums and review threads. Not part of our score
Tire A
Kumho Ecsta PS31
We haven't collected enough community discussion about this tire yet.
Tire B
Mixed
Kumho Ecsta PS91
Community opinion on the Kumho Ecsta PS91 is generally mixed, praising them as a budget-friendly, good-looking max performance summer tire that rivals premium brands in daily driving comfort and appearance. However, multiple users note concerns regarding rapid tread wear, poor heat capacity under track conditions, and susceptibility to degrading under hard abuse compared to dedicated 200 treadwear or extreme performance tires.
r/e46
·222 upvotes ·2025-03-27
“Follow up on new wheels/tires for ZHP Well new wheels and tires are on aswell as aligned. I love the tire and fitment setup but really do not like the gunmetal grey color especially on imola. I will feel it out for a while but probably eventually powder coat to OEM silver. Wheels specs are 18 x 8.5 x ET50 with 255/35/18 Kuhmo Ecsta PS91 all around. -2.5 camber in the front and -2.8 in the rear.”
r/E90
·180 upvotes ·2025-09-17
“New meaty tires set up installed, now I can order spacers Went up tire sizes and they definitely fill the gap a bit. First time running sticky kumhos on anytime so excited to see how they turn out.Specs are Kumho Ecsta Ps91 235/40/18 up front and 265/40/18 in the rear. Read more”
r/e46
·39 upvotes ·2025-03-26
“New wheels and tires for my ZHP My old wheels were super beat up and tires were showing wire so I figured I’d upgrade both. Was able to get these freshly powder coated squared set (18/8.5/et 50). Im excited to feel the Kuhmo Ecsta PS91 as they are a budget friendly performance tire. 255/35/18 tires all around”
r/G37
·30 upvotes ·2026-03-21
“275/40 Square Can Fit on a Sedan Shout out to TireRack for having great information on actual tire size. Ecsta PS91 265/40 and ExtremeContact 275/40 has a tread width and section width difference of 0.1” and 0.2” respectively. Tires fit just about perfect. No rubbing so far, and don’t expect it to rub bc of the relatively minimal width change Really goes to show that tire brand matters for fitment Read more”
Top themes
#budget friendly performance#ride quality and comfort#tread wear longevity#track and heat performance#tire mixing risks#fitment and appearance
Based on 16 community posts
Specifications
Specs side by side
| Attribute | A · Kumho Ecsta PS31 | B · Kumho Ecsta PS91 |
|---|---|---|
| Category | Summer Ultra High Performance tires | Summer Extreme Performance tires |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
| Sizes available | 4 | — |
| Rim diameters | 17″ – 18″ | — |
| Tread depth | 10/32″ | — |
| UTQG | 460 A A | — |
| Sidewall | Blackwall | — |
| Max pressure | 51 psi | — |
Final verdict
Which one should you actually buy?
83
/ 100
Kumho
71
/ 100
Kumho
Winner: Kumho Ecsta PS31 — better comfort, treadwear and dry. It leads or ties in every category we score.
Pick tire A
You want the most comfortable ride
Kumho Ecsta PS31 scores 83 vs 52 on comfort.
Pick tire A
You want the longest tread life
Kumho Ecsta PS31 scores 81 vs 57 on treadwear.
Pick tire A
You want the most grip on dry roads
Kumho Ecsta PS31 scores 86 vs 82 on dry.
Pick tire A
You enjoy sharp, responsive handling
Kumho Ecsta PS31 scores 79 vs 75 on handling.
Tire A · Kumho Ecsta PS31
Tire B · Kumho Ecsta PS91
More comparisons
Also compared with
Kumho Ecsta PS31 also compared with
Kumho Ecsta PS91 also compared with
How do we compare tires?
Every category score blends two independent signals. 60% comes from professional tire tests (braking distances, lap times, noise measurements) normalized against the best tire in each test and weighted toward recent tests. 40% comes from thousands of owner reviews collected from retailers and review sites. When a tire has only one of the two, we use what exists and say so.
Community buzz from Reddit and forums is shown for context only — it never changes the score.