Firestone Firehawk Indy 500 vs Kumho Ecsta PS91 — Compared

“Firehawk Indy 500s As promised, some initial thoughts. These are extremely comfortable. They honestly made it hard to understand how fast I was going because I've come to gauge my speed based on how much I'm being jostled around. I felt almost nothing with these, and there's so much construction on my way to work from the tire place, including a road that hasn't been surfaced properly yet. Perfect testing run for comfort. In terms of performance these bite the road a lot better and it's a lot easier for me to get moving again. Granted, my run flats were almost bald and that's my most recent memory of how they performed, but it's shocking how much I can take a turn or even just accelerate without any risk of sliding or slipping. It feels like a completely different car honestly, and people aren't kidding when they say "just get better tires" on some of these posts asking about mods. It's not as sexy as a new intake, but it makes a much bigger difference. I mean I feel like I was missing out on at least half of my roadster's potential here. So yeah I definitely like them. I don't mean to insult the tire guys' ability to apply tire shine, but I need to redo that disaster when I'm home. I only have detailing spray right now.”

“Quote: Originally Posted by AUaviator I'm having trouble finding these tires in stock. Rears are back ordered and only 1 front available and it's on tire rack. 22545/17 255/40/17. www.simpletire.com looks to have them instock with free shipping and a 60 dollar rebate. A little hard to find but search for them individually by size.”

“I need a 224/45/15 I run these on my S2000 wheelset for driving around town and they are great. I also have used them for plenty of track days. They get a little greasy towards the end of sessions but have never let me down.”

“Putting some Kumho Ecsta PS91s on. Curious how they’ll do since my go to Falken rt660 doesn’t come in the oem 18” sizes”

“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”

“You will get smoked if you go with the PS91. They also do not hold well under abuse. I feel that the RE-71RS would be a better value for you simply because they'll hold and remain consistent even as they wear very far down. I've used the RE-71RS at a track day before and even as the tires were chunking and melting, they still maintained their grip, as if they were just BEGGING to be abused, to see how far they could be pushed.”