Which Pirelli OEM's are they, as I would guess you know OEM mean Original equipment manufacturer, so Im assuming they were made for a car company to use on there car, but I will also assume they have some model number. If its the Pzeros, they are nice, but kind of a compromise tire. They offer great handeling, but not the best in its class, what you give up in handeling you gain in comfort and noise reduction. The Paradas are nice too, but I havent used them on my car, I have a friend with them. I have BFGoodrich G-force KD's, the ones that advertise the over 1 g ability. I have to say, they are great tires, if all you car about is handeling. They are noisy, ruff riding, quick wearing, not great in wet weather. But they are soooooooo sticky its rediculous, I was told they would outhandle the car, I didnt know what that means, I still think he made it up, but they definatly are held back by the car, not the other way around. Anyway, My point is that you should carefully asses your needs, and decide what compromise you are willing to make. Im yet to find the perfect tire.