MBRP S7101409 Muffler Bypass Pipes for Dodge Challenger / Charger 5.7L Hemi (17-23) & 6.4L 392 (15-23). 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.