2015 GT PP: Daily driver April-November. Responsibly aggressive on the street, tracked on a road course a few times each year, but not on my daily tires.
I needed to replace the factory Pirelli P-zeros, and was looking for a great all around daily driver tire that won't see winter driving. I was never a fan of the Pirellis. They would wheel hop, (even after extensive rear end stiffening), were quite twitchy and had violent correction characteristics at their limits, and additionally, they were noisy and rough. I got 17,000 miles out of the rears which were completely bald, and started with premature center wear at 12,000 miles, despite being inflated to only 28 psi.
I am aware I'm comparing a Max Performance to an Ultra High Performance tire, but strictly for the purpose of driving and enjoying this car daily and a bit more economically.
I decide to give these Firestones a try, mainly due to price and a treadwear rating of 340 vs 220 of the Pirellis. The following is my street tire, daily driver review of them. I would feel confident taking them to a track day, but I run Michelin Pilot Super Sports on track days on a track dedicated tire/wheel and brake set-up. So, again STREET TIRE/DAILY DRIVER REVIEW ONLY.
It took me a couple of weeks of experimentation to get the air pressure correct. 34 front, 29 rear cold PSI is perfect for me. That puts 100% of the contact patch down without rolling to the sidewall, gives a comfortable ride, and hopefully...wont't wear out the centers of the rear prematurely.
The first thing I noticed was that noise and ride quality were greatly improved. Steering feel is great under load, but immediate and borderline twitchy when initiating steering input from on center. Not a bad thing, just different. They track straight and true without transferring road surface imperfections into directional changes.
After I got the pressure dialed in I started pushing them. Hard. They have very good grip. Straight line is equivalent to Pirellis, but without violent wheel hop. I feel that they have about 95% of the Pirellis overall grip, but transmit better feedback when approaching their limits. And, corrections are much more smooth, fluid, and uneventful than the Pirellis "snap back" characteristics. I have about 3000K on them and have shed 1/32" off of the rear evenly across the tread. So, simple math shows that I should get 30k out of them since they had 10/32s new.
Wet weather traction is also very good, and surprisingly confidence inspiring considering the width and profile of them.
Final thoughts: While these are probably not the best tire in any one category, they are certainly one of the best average overall, and I have not found a single compromise. Especially for around $700/set. Perhaps these are the BFG KO2 All Terrain Tire of performance cars.
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