Tests – · none yet Owners 64 · 259 reviews
Head-to-head
Updated
Kumho Ecsta PS31 vs Kumho Ecsta PS91 — Compared
Relative Score (0–100): 60% professional tests, 40% owner reviews.
Ecsta PS31 is ahead, 65–59
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Tests 76 · 6 tests Owners 47 · 485 reviews
“Pretty terrible idea, the PS91 will not have the same heat capacity as the V730, so your front/rear grip balance will change wildly during a session. With the non-200s on the front, at least you’ll understeer instead of oversteer/spin, but not ideal. An experienced driver might be able to work around this, if you’re new, this would be a dangerous situation. Similarly, I wouldn’t mix something like a yokohama AO52, which delivers all of its grip from cold and tends to overheat within a couple laps, with something like a hankook RS4, which famously takes some time to warm up and then delivers consistent grip for a long time”
Category by category
Relative Score per category, 0–100. Open “Why this score” for the tests and owner ratings behind it.
-
64
Dry
Ecsta PS91 +468Why this score
Source Ecsta PS31 Ecsta PS91 Professional tests (TWG score) – 76 Reviews found online 63 57 -
69
Wet
Level69Why this score
Source Ecsta PS31 Ecsta PS91 Professional tests (TWG score) – 77 Reviews found online 68 55 -
58
Snow
Ecsta PS31 +2038Why this score
Source Ecsta PS31 Ecsta PS91 Reviews found online 50 17 -
67
Comfort
Ecsta PS31 +661Why this score
Source Ecsta PS31 Ecsta PS91 Reviews found online 65 53 -
67
Noise
Ecsta PS31 +166Why this score
Source Ecsta PS31 Ecsta PS91 Professional tests (TWG score) – 75 Reviews found online 66 54 -
65
Treadwear
Ecsta PS31 +1649Why this score
Source Ecsta PS31 Ecsta PS91 Reviews found online 65 37 -
67
Handling
Ecsta PS31 +1057Why this score
Source Ecsta PS31 Ecsta PS91 Reviews found online 67 57
Scores at a glance
| Category | Kumho Ecsta PS31 | Kumho Ecsta PS91 |
|---|---|---|
| Relative Score | 65 | 59 |
| Dry | 64 | 68 |
| Wet | 69 | 69 |
| Snow | 58 | 38 |
| Comfort | 67 | 61 |
| Noise | 67 | 66 |
| Treadwear | 65 | 49 |
| Handling | 67 | 57 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
Weight the categories that matter to you
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
65
/ 100
Ecsta PS31
59
/ 100
Ecsta PS91
Pros, cons & observations
Themes extracted from owner reviews found online — not the opinion of TireWheelGuide.
Tire A Ecsta PS31
Pros
- Excellent price-to-performance ratio
- High levels of ride comfort and low road noise
- Strong dry traction for daily and spirited street driving
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
Tire B Ecsta PS91
Pros
- Exceptional dry and wet grip providing high confidence during spirited driving
- Significantly more affordable than premium flagship alternatives while offering comparable performance
- Stiff sidewalls enhance steering response, cornering stability, and feedback
Cons
- Accelerated tread wear and shorter lifespan, particularly with aggressive driving or on heavier vehicles
- Stiff sidewalls result in a firmer, less comfortable ride that transmits road imperfections
- Tendency to tramline or follow road grooves on straight highways
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/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”
r/Wheels
·2020-10-06
“90% used Michelin super sports or New Kumho ecsta ps91. I am juggling between either getting a set of used 90% tread Michelin pss or 4s... or getting some new kumho ecsta ps91s. I’ve always thought Michelin had the best ride and profile appearance even in a high end sport tire but of course the price. If I go used they are about the same price as a set of new kumho. I have never tried the ps91 but they look like Michelin’s even the recessed rim guard looks similar and many reviews say performance and ride is similar.”
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
Specs side by side
| Attribute | A · Kumho Ecsta PS31 | B · Kumho Ecsta PS91 |
|---|---|---|
| Category | Summer | Summer |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
| Sizes available | 21 | 1 |
| Rim diameters | 15″ – 18″ | 19″ |
| Tread depth | 10/32″ | 9.5/32″ |
| UTQG | 460 A A | 260 A A |
| Sidewall | Blackwall | Blackwall |
| Max pressure | 51 psi | 50 psi |
Which one should you actually buy?
65
/ 100
Kumho Ecsta PS31
59
/ 100
Kumho Ecsta PS91
Winner: Kumho Ecsta PS31 — better snow, treadwear and handling. Pick the Kumho Ecsta PS91 if dry matters most to you.
Pick tire A
You drive through snowy winters
Kumho Ecsta PS31 scores 58 vs 38 on snow.
Pick tire A
You want the longest tread life
Kumho Ecsta PS31 scores 65 vs 49 on treadwear.
Pick tire A
You enjoy sharp, responsive handling
Kumho Ecsta PS31 scores 67 vs 57 on handling.
Pick tire A
You want the most comfortable ride
Kumho Ecsta PS31 scores 67 vs 61 on comfort.
Tire A · Kumho Ecsta PS31
Tire B · Kumho Ecsta PS91
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How do we compare tires?
Every category score blends two independent signals. 60% comes from professional tire tests (braking distances, lap times, noise measurements), each result compared with every other tire in the same test and newer tests counting more. 40% comes from owner reviews found online, adjusted for how generously each site rates. Both use one scale: the average tested tire gets 70, the best 100. When a tire has only one of the two, the missing half is estimated from the other and the score stays closer to average; with no road test and fewer than five owner reviews it gets no score yet.
Community buzz from Reddit and forums is shown for context only — it never changes the score.