MBRP S7118AL Cat Back Exhaust System (Race Profile, Polished Tips) for 17-23 Dodge Charger 5.7L Hemi and 15-23 6.4L 392. Unleash your vehicle's most aggressive sound with an MBRP Race Profile exhaust. Hear the biggest gains and turn heads every time you hit the gas. Your vehicle will sound like it belongs on a race track.