CORSA Performance's 2021+ Dodge Durango Hellcat Exhaust Offering Has Arrived! The Dodge Durango Hellcat catback exhaust assortment is available in both Sport and Xtreme sound levels allowing the driver to tailor the exhaust system to their exact sound profile. Made from 2.75 in. 304 stainless steel construction and featuring CORSA's Best-in-Class No Drone RSC(R) Technology, this is the ultimate Durango Hellcat exhaust system. CORSA's Sport sound level is 6 decibels louder than the stock exhaust system and offers an aggressive cold start, moderately aggressive exhaust note under acceleration while maintaining stock levels of in-cabin volume. CORSA's Xtreme system is 17 decibels louder than the stock system and noticeably more aggressive than the Sport system on both cold start and during acceleration while only inducing slightly more in-cabin volume. All exhaust systems come with dual wall stainless steel exhaust tips and come available in both polished and black PVD coating. CORSA Performance exhaust systems are made possible through a 25+ year commitment to perfecting the Science of Sound© and are proudly made in the USA and backed by a Limited Lifetime Warranty.