Just days ago, ZR1-sized ripples began resonating around our community, and not surprisingly, the incredible 2025 Corvette ZR1 took the limelight from the 2026 ZR1X when Paragon Performance released the world’s first dyno runs of this incredible “1,064” HP two-ton beast. Yes, two tons–more on that soon. And there is a reason I put the horsepower in quotes, because it now seems apparent that GM underrated/understated the horsepower figures for the 2025 ZR1. [Author’s Note: This article is FREE and not behind a paywall. Yes, FREE! If/when any pop-ups appear, please click to dismiss them and continue enjoying the article.]
What’s Inside Today’s CorvSport Reports
- Let’s Look At Those ZR1 Dyno Results From Paragon Performance!
- Video Of The World’s First Dyno Run For The 2025 ZR1
- Paragon Performance’s Facebook Post On The Dyno Results Goes Viral!
- TWO-TONS: The Community Reacts To Paragon Performance Weighing Non-ZTK vs. ZTK ZR1s
- The Community Summary of The Sandbagging Sentiment
1) Let’s Look At Those ZR1 Dyno Results From Paragon Performance!
Let’s zoom in and take a look at the dyno numbers Paragon Performance proudly shows off!
Yes, you are reading that correctly!
MAX POWER at the rear wheels: 1028.60
MAX TORQUE at the rear wheels: 839.85
Now, for the apples to apples comparison:
♦ GM’s published HP at the crank: 1,064
♦ Paragon’s HP at the crank (adjusted for a 12.5% drivetrain loss): 1,176
Estimated Increase Over GM’s Numbers: 112 HP!
♦ GM’s published Torque at the crank: 828
♦ Paragon’s Torque at the crank (adjusted): 960
Estimated Increase Over GM’s Numbers: 132 lb-ft!
2) Video Of The World’s First Dyno Run For The 2025 ZR1
Video Preview From Paragon Performance:
“Sit back & enjoy seeing just how crazy the C8 ZR1 is & the WHP will shock you!”
Video Stats:
- 31,234 Views
- 924 Likes
- 234 Comments
- Length: 17:01
Top Video Comments:
- “Over 1000 horsepower to the rear wheels from the factory…. in a CORVETTE! Insane!” @RideWithDanger
- “That UAW wheel on the right fender is a thing of beauty!! Thank you brothers/sisters for doing your part in bringing this beast of a machine to the public!” @harrisgregory74
- “1,028 wheel hp, means Chevys 1064 crank hp is probably very conservative.” @rhpicayune
3) Paragon Performance’s Facebook Post On The Dyno Results Goes Viral!
From Paragon Performance: “Absolutely wild numbers from the C8 ZR1 on the Dyno!”
Facebook Post Stats:
- 1200 Reactions
- 604 Comments
- 454 Shares
- Click on the top right “f” or anywhere on the picture to join the discussion!
4) TWO-TONS: The Community Reacts To Paragon Performance Weighing Non-ZTK vs. ZTK ZR1s
From Paragon Performance: “The weights are in! Both cars are 3LZ’s, comp seats, level two interior carbon, full tanks of fuel etc.. only difference between the two specs are the colors & Non ZTK VS ZTK…”
Facebook Post Stats:
- 387 Reactions
- 168 Comments
- 18 Shares
- Click on the top right “f” or anywhere on the picture to join the discussion!
What are your thoughts as GM’s top dog (for now) nearly hits two tons?!?
5) The Community Summary of The Sandbagging Sentiment
This is just a small sample of the sentiment I’ve seen around social media (sourced from the Corvette Forum, one of my favorite communities, if you’re looking for one!).
AND then, there’s the other perspective… Nothing to see here, folks!
Thanks for joining CorvSport today! Are you loving this 2025 ZR1, or what?!? Are you CORVETTE OBSESSED like we are? The team of renowned authors and contributors at CorvSport hopes you sense our passion for the iconic Corvette, and our vast database of articles and guides should prove it–5000+ features since Scott Kolecki founded CorvSport over 15 years ago! Join the fastest-growing Corvette community on our Facebook page, with over 169,000 followers (50,000 since January 2023!). Meet other hardcore enthusiasts and say hello. This is Douglas B. signing off–click here if you would like to view more of my features.
