Junior Member, warming up (<31 posts)
Join Date: Oct 2011
Location: Dayton, OH
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Kumho PS91 Review
Why didn't I buy pilot super sports? Cost was the main concern, with curiosity the second. I've had quite good luck with Kumho tires in the past. I purchased four 275/35ZR-18 PS91s from Tire Rack for $145.45 each, plus $74 in shipping, for a total of $581.80. I mounted them myself at a friends shop, but assume around $20 each to mount and balance if you're tallying up total costs. A casual check of Tire Rack's website shows Pilot Super Sport on sale at $227 each, so a total with shipping of $982 for four tires to my door. For $400 less per set, I was willing to take a chance on the Kumhos.
Big shout out to Tire Rack here, I placed my order at 4:41 PM and my tires were sitting at my door 2:59 PM the next day. With standard shipping. Amazing.
The PS91 look quite similar to the PSS, almost to the point of being a direct knockoff. The sidewall on the PS91 isn't as good looking in my opinion, but it's also not much different and probably not noticeable unless you were comparing them side by side. The tread pattern is very similar, but the PS91 is not directional. This is very much a plus for me as my car has squared wheels, allowing for tire rotations.
How do they drive? Very well. I would say on the road they're so close in performance to the PSS I'd have to drive them back to back on the same car to really get a feel for the difference. In normal driving I doubt you'd be able to tell any difference in noise or ride comfort. I can say that straight line acceleration traction is vastly improved, especially over my worn set, and turn in is slightly softer with the Kumhos.
tldr: The PS91 is a great tire for the price and a close knockoff of the PSS