Jeep Wrangler JL, 2018 Catback Dump Exhaust System. Expertly engineered and trail tested catback for maximum clearance while giving you that deep growl at low RPMs while rock crawling. This system features a unique dump after the axle to completely remove the muffler system. This provides maximum clearance for the serious rock crawlers. This American made system is TIG welded and made with 2.5 304 Stainless Steel to resist corrosion and last a lifetime. This system includes everything you need to install except tools and a cold six pack. It bolts right up to the factory tubing and shouldnt take more than 4 hours to install for the average Jeep owner. olllllllo.