Dodge Challenger SRT Hellcat on the rollers at Petty's Garage #Repost from @pettysgarage with @regram.app ... 866 HP to the rear tires on pump gas! Great dyno run day for this Petty’s Garage built 426 Hellcat Challenger. SOUND UP 🔈🔈 #dynorun #Dodge #Hellcat #Challenger #hemi #mopar #byPetty #pettysgarage @dodgeofficial @fiatchrysler_na @officialmopar #SRT #ChallengerFam (at Petty's Garage)








