2 of my freinds have them and they worked good for pulling, they love them on the street, but were no were near the STS's performance while pulling , they worked OK on the strip at modderate power but on a decent power truck they wouldnt hook worth crap . My buddy Matt Larson did a 300ft 4WD burn out at the strip with those tires on, he also got them free for being in the DPC ..............................