Stainless Works 15-19 Dodge Challenger 6.2L/6.4L Hemi 3in Redline Catback X-Pipe w/4in Quad TipsImprove sound and performance on your 2015 19 Dodge Challenger 6. 2L and 6. 4L Hemi with our Redline 3" Catback exhaust with X Pipe. This system includes tailpipes and adapters to fit to factory manifold lead pipes or Stainless Works headers. These dual custom turbo mufflers, engineered for a drone free real aggressive sound, are tuned specifically for this Hemi engine from Dodge. This system includes functional 3" diameter Active Exhaust replacement