Falken  Azenis RT615K+

For the price I can't complain grip is very good , handles great on a mustang allows me to do what I was looking to do , good in rain awell

Perfect for what I wanted. Too good to find the limits safely on the street. Lasted as expected and had surprisingly good traction in the rain until almost no sipes left. Can't beat for the price and enjoyment.

First time with the set- trying to gain a better track edge from the Invo's and other brands I've had on the car.
Excellent traction on the dry surface and better than I expected on wet and raining surfaces- I don't push it when the weather isn't dry but these were reasonable up to 120 kph, and stayed stable and predictable. On dry surfaces, these puppies really hookup and I had some great runs where they simply outran the other guys tyres.
On the track, the cornering was predictive and even when I overcooked the entry, I was always able to manage these tyres into a good recovery. In straight-line events, a really good and strong launch didn't phase them- hooking up nicely every time (no tire is subject to exact traction if you apply too much horsepower but these were the best yet at taking a big load).
The wear on any tyre south of 300 or more is not for the guy who wants 30000 miles out of a set- these at least lasted as long as my Invo's. Be prepared for new set every summer to be on the safe side. They were quiet and ran smoothly for 'around the town' driving and I'm really pleased with this stat!
So, they ride well, handle well and deliver a nice punch in the performance area- best I've experienced to date.
I would recommend them for the street-track guy who enjoys pushing the envelop.

I've only driven 100 miles so far on these tires. I barely broke-in the tires, then took it out for an autocross the same day.

On the autocross, these tires were absolutely phenomenal. After one run, the tires heated up to proper operating temperature. I was able to rotate the car with the throttle and brake with extreme precision. These are things I was never able to accomplish with the old all-season tires I had on before. Steering feel was improved, with good information coming through the wheel, but it could have been better. The highlight of these tires was how EASY it was to take it around the autocross course at a blistering pace. My Miata suddenly felt like an extension of myself during the second run (and thereafter).

Noise and ride quality have been surprisingly good so far. I was expecting more noise and harshness, but they seem to be on par with my old Hankook S1 Noble A/S tires so far. Perhaps I'll report back in 1000 miles.

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Update 5/22/2017:
I now have 240 miles on these tires. I've attended two more autocrosses and done some freeway commuting.
I've discovered a single downside: Gas mileage is noticeably decreased with these tires. I'm getting about 25 MPG (as opposed to about 29-30) during freeway slogs, which was rather surprising. Perhaps its due to the soft rubber compound.

I just participated in a wet autocross on 5/21. The tires were, again, immediately sticky and very forgiving. The degree of controllability when approaching the limits of the car is astonishing. Even in the wet, the tires got warm and grippy very quickly. Would recommend, 10/10.

This is a fantastic tire for track use. I have driven them on the street on a Miata as well and they are fantastic there as well. Very predictable. Comes up to temp quickly and grips hard. We ran at around 28psi cold, bringing us to around 31-32 hot. Braking is phenomenal combined with wilwood brakes. A slight slickness when hot and overdriven, but easily manageable due to predictability. Holds the line well. If you don't like theses tires with only 20 miles driven, then you really don't know what you are you doing or how to drive (i'm looking at you 2012 Porsche Caymen S reviewer).

I have a set of 225/45R17 Falken Azenis RT615K+’s on my 08 Civic Si Sedan and they are fantastic. I drive to and from the autocross track on the Falkens and run my laps in the same tires. They have two seasons on them with heavy autox abuse and still have a ton of life left while being in the hot South Texas heat. The tires have mostly track time on them as I don’t daily them too much but are fantastic as just a good street tire with low noise with the ability to be an impressive track tire. Highly recommend

Great tire .
Most competitive price for the 200 treadwear class.

Excellent grip, gives you confidence to throw the car into a corner far faster than you thought possible and delivers. Find myself out cornering cars that should be keeping up. Even in wet and cool weather the tires are compliant and keep you in control. Highly recommend for your spirited drives.