my last best time of [email protected] was with bald nitto drags, off road h pipe, flowmaster catback, and morpheus power pipe. since then i have added MM IRS bushings, BFG drags (275/40/17) and the predator performance tune. i have not been to a dyno yet, so i dont know how much it improved, but i can definitely feel it in the mid range. these tires just hook, i ran a 1.95 60' on first run and a [email protected], next was 1.91 60' and a [email protected], then another 1.95 60' and a [email protected] i am still playing around with shift points and launch techniques with these tires. best launch was at 3000 rpms with a slight spin. i want to see if can run a 11.9 or 12.0 without doing a pulley, long tubes or throttle body.