Are these R-compound, i dont see any R anywhere but they are street/summer legal and race ready
http://www.costco.com/Tires/Product.aspx?IV=true&YW=1998&MA=PORSCHE&MD=Boxster+w%2f17+Inch+Tire+Opt.+(Rear)&SP=0&MN=11419&cat=3961&lang=en-US&MNo=0&Prodid=11237875&Aspect=40&Diameter=17&Speed=W&Width=255
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