The G-Force T/A KD is pretty much the best gripping street tire ever offered by BFG. Do not confuse it with the KDW, KDW2, or the KDWS as they have a lot more tread pattern cut into them and are wet driving capable and all season respectively. The KD is a "dry weather only" summer tire. To my knowledge it is no longer made, or at least is no longer listed on BFG's website.
If you are wondering about the legitimacy of this tire, look no further than what the 2000 cobra R (a true factory racer) came with from the factory. Their grip is absolutely ridiculous for a street tire both in a straight line and when you are forced to use the steering wheel or brakes. On top of that, if you can avoid regular burnouts you can easily get 12,000 miles or more out of them. However, don't drive in any conditions that involve water on the road, it might end up being the last drive you take.
I have 17x9 steeda ultralites on all corners, and use 275/40/17 on all corners. On your setup, barring any modifications you would have to do to your fenders or fender wells, you could easily run 315/35's out back...maybe more.
Hope this helps.
while i think this tire is def not the best for the rain, i dont think it would be hazardous if one got caught out in a rain storm - least i hope not. from what i understand tirerack tests each tire they carry on a closed course track. while this tire did not score high, it did place "good" in the catagory of hydroplane resistance and wet traction. BFG's representation of their tire states: "The g-Force T/A KD is designed to deliver BFGoodrich's Traction/Advantage to increase the performance capabilities of sports cars, sports coupes and performance sedans by providing remarkable dry road performance (hence the "D" in KD) while providing satisfactory wet traction. The g-Force T/A KD is not intended to be driven in near-freezing temperatures, through snow or on ice." they also mention: "...features a asymmetric tread pattern (with large, stable blocks to provide more outer shoulder contact area than almost any other street tire in history) which increases cornering traction and steering response, combined with directional water evacuation channels to help resist hydroplaning and enhance wet traction..."
i dont think i would have chosen this tire if the car was my DD. i have to say tho, the main reason i went with these was because of the price. i could not find a pair of new 295/35/18s anywhere else for $344 shipped.
very good point about this tire being factory on a cobra r, i did not know that. a car of that caliber would have to have a more than adequate set of tires.
hopefully these tires will be safe if conditions were to get slippery

