just a sop thought on this as have both a sho & an r/t challenger. my untuned sho with dp's & md cai wins the 1/8 easily after that the tuned challenger comes on fast, probably dead even. so a tuned sho, which mine will be soon, should beat an r/t easily & be able hang in there with an srt. as long as the srt isn't moded or tuned. will know in a couple month when mine is tuned & my bud gets his r/t scatpack shaker. sound is no comparison r/t with magnaflow's is sweet, sho w/borla nice but still a v6.