82
/ 100
Objective (60%)
68/100
1 professional test
User signal (40%)
91/100
108 owner reviews
Prices change daily — check the retailer for your size.
Head-to-head
Updated September 2026
Kumho Ecsta PA51 vs Michelin Pilot Sport 4 S — 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
89
/ 100
Objective (60%)
94/100
28 professional tests
User signal (40%)
93/100
2,091 owner reviews
Prices change daily — check the retailer for your size.
VerdictWinner: Michelin Pilot Sport 4 S — better comfort, dry and handling. Pick the Kumho Ecsta PA51 if noise matters most to you.
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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)
Pilot Sport 4 S leads by 12
Why this score
| Source | Ecsta PA51 | Pilot Sport 4 S |
|---|---|---|
| Professional tests (TWG score) | 69 | 87 |
| Tire Rack owners | 89 | 95 |
| Tyre Reviews owners | 75 | 92 |
| SimpleTire owners | 98 | – |
| America's Tire owners | 94 | – |
| Dry Braking (% of best) | 93% | 100% |
| Dry Handling (% of best) | 99% | 100% |
Wet
Score (0–100)
Pilot Sport 4 S leads by 1
Why this score
| Source | Ecsta PA51 | Pilot Sport 4 S |
|---|---|---|
| Professional tests (TWG score) | 85 | 83 |
| Tire Rack owners | 84 | 88 |
| Tyre Reviews owners | 58 | 87 |
| SimpleTire owners | 98 | – |
| America's Tire owners | 89 | – |
| Wet Braking (% of best) | 92% | 99% |
| Wet Handling (% of best) | 98% | 86% |
Snow
Score (0–100)
Why this score
| Source | Ecsta PA51 | Pilot Sport 4 S |
|---|---|---|
| Professional tests (TWG score) | 74 | – |
| Tire Rack owners | 63 | – |
| Tyre Reviews owners | 60 | – |
| SimpleTire owners | 88 | – |
Comfort
Score (0–100)
Pilot Sport 4 S leads by 36
Why this score
| Source | Ecsta PA51 | Pilot Sport 4 S |
|---|---|---|
| Professional tests (TWG score) | 23 | 82 |
| Tire Rack owners | 82 | 87 |
| Tyre Reviews owners | 63 | 84 |
| SimpleTire owners | 93 | – |
| America's Tire owners | 92 | – |
Noise
Score (0–100)
Ecsta PA51 leads by 6
Why this score
| Source | Ecsta PA51 | Pilot Sport 4 S |
|---|---|---|
| Professional tests (TWG score) | – | 78 |
| SimpleTire owners | 96 | – |
| America's Tire owners | 89 | – |
Treadwear
Score (0–100)
Why this score
| Source | Ecsta PA51 | Pilot Sport 4 S |
|---|---|---|
| Tire Rack owners | 79 | 80 |
| Tyre Reviews owners | 85 | 80 |
| SimpleTire owners | 94 | – |
| America's Tire owners | 90 | – |
Handling
Score (0–100)
Pilot Sport 4 S leads by 4
Why this score
| Source | Ecsta PA51 | Pilot Sport 4 S |
|---|---|---|
| Tyre Reviews owners | 75 | 86 |
| America's Tire owners | 92 | – |
| DriverReviews owners | – | 92 |
Scores at a glance
| Category | Kumho Ecsta PA51 | Michelin Pilot Sport 4 S |
|---|---|---|
| Relative Score | 82 | 89 |
| Dry | 79 | 91 |
| Wet | 86 | 87 |
| Snow | 76 | – |
| Comfort | 50 | 86 |
| Noise | 90 | 84 |
| Treadwear | 90 | 90 |
| Handling | 91 | 95 |
Higher is better. The Relative Score follows your weights below; category scores do not change.
Personalize
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.
Neutral
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Neutral
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Neutral
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Neutral
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Recomputed
Headline score
82
/ 100
Tire A
89
/ 100
Tire B
Only categories both tires have data for count toward the headline score.
Test data
The professional test results behind the scores
Each result is shown as % of the best tire in that test. “Same test” rows are the strictest comparison: both tires were measured side by side.
| Discipline | Category | Tire A | Tire B | Δ | Both? |
|---|---|---|---|---|---|
| Dry Braking | Dry | 93% #7/7 · 2020 Tyre Reviews UHP All Season Tyre Test | 100% #1/8 · 2018 Auto Bild 20 inch UHP Tyre Test | -7.1 | Different tests |
| Dry Handling | Dry | 99% #4/7 · 2020 Tyre Reviews UHP All Season Tyre Test | 100% #3/3 · OE vs Aftermarket - Is the tyre your vehicle came with always the best tyre? | -0.9 | Different tests |
| Price | Other | 70% #2/7 · 2020 Tyre Reviews UHP All Season Tyre Test | 46% #11/11 · 2023 Sport Auto UHP Tyre Test | +23.6 | Different tests |
| Overall Ranking | Overall | 17% #6/7 · 2020 Tyre Reviews UHP All Season Tyre Test | 100% #1/15 · 2021 Auto Bild 19 inch Summer Tyre Test | -83.3 | Different tests |
| Subj. Comfort | Subj | 65% #6/7 · 2020 Tyre Reviews UHP All Season Tyre Test | 87% #2/8 · 2019 Tyre Reviews UHP Summer Tyre Test | -21.7 | Different tests |
| Subj. Dry Handling | Subj | 80% #6/7 · 2020 Tyre Reviews UHP All Season Tyre Test | 90% #3/8 · 2019 Sport Auto 20 Inch UHP Tyre Test | -10 | Different tests |
| Subj. Noise | Subj | 100% #1/7 · 2020 Tyre Reviews UHP All Season Tyre Test | 98% #2/7 · 2024 EVO Summer Tyre Test | +2 | Different tests |
| Subj. Wet Handling | Subj | 80% #5/7 · 2020 Tyre Reviews UHP All Season Tyre Test | 89% #6/9 · 2025 EVO Summer Tyre Test | -8.9 | Different tests |
| Tyre Weight | Tyre | 100% #7/7 · 2020 Tyre Reviews UHP All Season Tyre Test | 99% #2/10 · 2020 UHP, UUHP and Track Day Tyre Test | +1 | Different tests |
| Wet Braking | Wet | 92% #6/7 · 2020 Tyre Reviews UHP All Season Tyre Test | 99% #2/6 · 2018 Auto Bild 19 inch Summer Tyre Test | -6.6 | Different tests |
| Wet Handling | Wet | 98% #6/7 · 2020 Tyre Reviews UHP All Season Tyre Test | 86% #6/7 · Best Performance Tyres For 2025 | +12.2 | Different tests |
From owners
Pros, cons & observations
Themes extracted from owner reviews across retailers and review sites — not the opinion of TireWheelGuide.
The Kumho Ecsta PA51 is widely regarded as a high-value, ultra-high-performance all-season tire that delivers impressive dry grip and ride comfort at a competitive price point. While the vast majority of users report satisfaction with its handling and noise levels, a small minority of drivers find its wet-weather performance and noise characteristics lacking compared to premium-tier alternatives.
Pros
- Excellent price-to-performance ratio
- Strong dry pavement traction and cornering grip
- Quiet and smooth ride quality
- Attractive sidewall aesthetics
- Consistent, even tread wear over long-term use
Cons
- Inconsistent performance in heavy rain or standing water
- Some reports of increased road noise over time
- Limited availability in certain niche sizes
- Occasional traction loss under hard acceleration
Observations
- Users with performance-oriented sedans (e.g., Acura TL, Infiniti G35x) report that the tire effectively manages power delivery and provides a significant upgrade over worn OEM tires.
- Owners of daily drivers and SUVs frequently praise the tire's longevity and comfort, noting it performs well for suburban and highway commuting.
- Some users noted that while the tire is excellent for general use, it may not meet the extreme performance expectations of high-horsepower sports cars compared to top-tier dedicated performance tires.
The Michelin Pilot Sport 4 S is widely regarded as a benchmark ultra-high-performance summer tire, consistently praised for its exceptional wet and dry grip, confidence-inspiring handling, and superior ride comfort compared to OEM run-flat alternatives. While most users laud its versatility and safety, some enthusiasts note that its relatively soft sidewalls can result in slightly less steering precision or feedback compared to more track-focused or stiffer-walled competitors.
Pros
- Exceptional wet and dry traction
- High levels of ride comfort and reduced road noise
- Predictable handling and stability at high speeds
- Excellent rim protection design
- Strong longevity for a high-performance tire
Cons
- Soft sidewalls can feel vague or sluggish during aggressive steering inputs
- High price point compared to competitors
- Performance can degrade significantly as the tread wears down
- Reports of sidewall cracking or perishing in some climates
- Not suitable for cold weather or snow
Observations
- Users transitioning from OEM run-flat tires on luxury and performance vehicles (e.g., BMW, Mercedes, Tesla) report a transformative improvement in ride quality and noise reduction.
- Drivers of high-horsepower, rear-wheel-drive vehicles frequently highlight the tire's ability to put power down effectively, though some note faster wear on rear axles.
- Some users with heavy vehicles or specific performance setups noted that the tire's soft sidewall can lead to a 'bouncy' or less precise feel during rapid direction changes.
Community buzz
What real owners are saying
From Reddit, forums and review threads. Not part of our score
Tire A
Kumho Ecsta PA51
We haven't collected enough community discussion about this tire yet.
Tire B
Positive
Michelin Pilot Sport 4 S
The Michelin Pilot Sport 4 S is widely praised by the community as a premier max performance summer tire, offering exceptional dry and wet grip, precise steering feel, and refined road manners for daily driving and spirited street use. While some users note higher pricing and relatively quick wear on heavier vehicles or hot tracks, it remains a benchmark choice that many enthusiasts gladly return to despite alternatives like Continental or Kumho.
r/CarTrackDays
·97 upvotes ·2026-05-04
“Tire condition after 1st track day. PS4s on a GR86 First 2 pics are drivers front, rest pass front. This was at CMP, temps mid 70s, mostly cloudy. Lowered TP to 31psi. Highest I saw on track was 36 psi. The driver side l thought looked good, but passengers side inner looks like they melted. Is this track rubber I picked up or due to mostly turning right on this clockwise circuit?? Also was pleasantly surprised to only have used 1/16 of tread depth after 110 minutes on track. Given what I have read, thought the ps4s would be all used up. Maybe on a hot track surface they would have been eaten up. Read more”
r/TyreReviews
·41 upvotes ·2026-03-17
“Am I the owner of the newer PS4s?😁 Hello everyone, new in the sub and just want to share my love for the Pilot Sport 4s. This is the third set and I love it. To me they are the perfect compromise beetween performance anche tyre wear. Last set last me 43k km, I do lot of highway and some spirited drive when possibile. I also had a set of Sport Contact 7, awesome grip, to me better than the PS4s, almost too much for my stock Golf. They also wear out faster. I saw yesterday the review of Potenza Sport Evo and they promise very week, maybe next time I’ll try!”
r/cars
·4 upvotes ·2018-08-21
“I’ll say this. Going from the Pilot Super Sport to the Pilot Sport 4 S of the same size, I’m disappointed in the soft sidewall of the 4 S. This is an 8.5” wide wheel with 235/40/18 tires. The left-right fast slalom action got a bit mushy like the weight transfer was slowed down when I switched to the 4 S. I think a shorter sidewall 4 S would perform better in this way, or the same tire on a 9” wide wheel too. That said, the dry and wet grip is exceptional. To save money, I’d recommend the Continental ExtremeContact Sport.”
r/ft86
·2 upvotes ·2023-06-01
“Depending on the size they are absolutely overkill for street use on stock motor. I just installed a set of 245 ps4s on 17x9 rpf1s and its almost impossible to trigger the abs and traction co trol. The car is on absolute rails. That being said, if you have the money, there is not really any negatives from that. I intend to use mine on track days. Felt the cup 2s were overkill for 2 to 3 track days a year.”
Top themes
#Dry and Wet Grip#Tread Life and Wear#Price vs Value#Track Performance Limits#Daily Comfort and Noise#Alternatives Comparison
Based on 104 community posts
Specifications
Specs side by side
| Attribute | A · Kumho Ecsta PA51 | B · Michelin Pilot Sport 4 S |
|---|---|---|
| Category | All Season Ultra High Performance tires | Summer Max Performance tires |
| Vehicle type | Passenger Car / Crossover | Passenger Car / Crossover |
| Sizes available | 13 | — |
| Rim diameters | 16″ – 19″ | — |
| Tread depth | 10.5/32″ | — |
| UTQG | 500 A A | — |
| Treadwear warranty | 45,000 mi | — |
| Sidewall | Blackwall | — |
| Max pressure | 51 psi | — |
Final verdict
Which one should you actually buy?
82
/ 100
Kumho
89
/ 100
Michelin
Winner: Michelin Pilot Sport 4 S — better comfort, dry and handling. Pick the Kumho Ecsta PA51 if noise matters most to you.
Pick tire B
You want the most comfortable ride
Michelin Pilot Sport 4 S scores 86 vs 50 on comfort.
Pick tire B
You want the most grip on dry roads
Michelin Pilot Sport 4 S scores 91 vs 79 on dry.
Pick tire A
You want a quieter cabin
Kumho Ecsta PA51 scores 90 vs 84 on noise.
Pick tire B
You enjoy sharp, responsive handling
Michelin Pilot Sport 4 S scores 95 vs 91 on handling.
Tire A · Kumho Ecsta PA51
Tire B · Michelin Pilot Sport 4 S
More comparisons
Also compared with
Kumho Ecsta PA51 also compared with
Michelin Pilot Sport 4 S 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.