they can make you slower by two ways, one is if you get a taller size than tire you have now, and the other is if you lower the pressure too much, but with 4.10s im guessing you have tractions problems so on the track if you find the optimum pressure for your combo they will definately NOT make you slower, they should dramatically improve your 60ft times if you have bad traction problems, they will be fine on a daily driver if you dont forget to air them back up after you leave the track, they wont last quite as long as a normal radial tire but you gotta give some to get some
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88 Notchback 5.0, 3.73's, Ported E7's, Explorer int. w/ ported lower, pulleys, Crane 1.7's, BBK headers, off-road H-pipe, flowmasters, subframe connectors, 65mm TB, shift kit, March ram air kit, motorsport wires, MSD coil, upper and lower control arms, 155lph fuel pump, cheap 2800 stall, Crane Adj.FPR, best time- 13.99@99.75, not yet tested times after rockers,intake or ported heads
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