I've been 1.5x on 20" 555r's and foot brake. Honestly for 600HP area I think they did decent, but it's not a guarantee. You need a good track. On the street, I got about 25k out of mine, and the first 15k they worked best. I daily drove them and put my boat in and out the water with them with no issues. However if you want more track performance, I'd recommend the m/t e/t's, widest and tallest you can fit.


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Street race, from a dig.