Azenis have always been known to be noisy. When you are shopping for tires in this category, you are going to have road noise no matter what.
FWIW, RT615's are not great track tires. They are very sticky and heat up quite fast BUT they become extremely greasy just after a few laps. The tires dont deal with heat very well. They are great for autocross since you will be out there for less then a minute but if you are trying to do a track day (20+mins on track) you should be careful since it will become greasy and start to slide.
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