I swear by the Falken rt-615 tire. I have tried other things (including kumhos) and like the falkens the best. I have been driving on my rt-615 for about 15k miles and they still have a bit of tread on them. That is amazing to me considering not only how I drive but that they are a soft compound racing tire. I will replace them very soon though. If you want something more streetable I would suggest the st-115. They don't grip as well as the azenis but they last much longer and are better in the rain.

Which type kumhos were you riding, any that are better than others?

Kumho MX are awesome IMO. I've been running them for 3 years and about 10k miles in size 255/40/17. I track the car, autocross and use them on the street. They have good enough grip to get traction at my power levels (~330 rwhp). On the road course they are great. They don't get overly hot and the grip stays consistent. At the limit, they communicate well letting you know when they run out of grip. They are also a really good wet weather tire providing wet weather traction similar to the Toyo T1s. The side walls are reasonably stiff and provide good steering input. Wear is good also.



The Falkens are pretty popular these days and they get a lot of the internet fan-boi people saying how great they are. The 615s were designed to be a great autocross tires. They are very sticky and heat up quickly but I wouldn't want to use them to drive on a regular basis. Most people wear them out very quickly.



Another good option is the Toyo T1R but they have softer side walls and feel a little mushy to me. They do give a slightly better ride though thanks to those mushy side walls.



For the price vs performance, I'd say Kumho is a great option.

Unlike the GSD3 and BFG KDWs, I don't have any personal experience with the KUMHO MX. But I've heard good things about them from one person at a local autoX event and from another person in a local car club I belong to. IIRC there was an article I read in a magazine some time back, (GRASSROOTS MOTORSPORTS maybe?) that also gave them good reviews. If I get the new street wheels I'm hoping for, I may give the MX a try myself.

Falken Azenis RT-615's