Magnaflow Race Series Stainless Axleback Exhaust System - 2015+ Hellcat Challenger The MagnaFlow Race Series Exhaust Systems are designed for the ultimate in high performance and the loudest most aggressive racecar sound possible. Race Series exhaust systems remove the restrictive OEM muffler to virtually eliminate backpressure and maximize exhaust flow. The Race Series is recommended for those seeking maximum performance, reduced mass, and a loud aggressive racecar exhaust tone that demands attention. 100% BOLT-ON. System includes complete hardware & instructions for installation. No Cutting Required! Warranty Registration Online Already purchased? Just click here and you can register for your lifetime warranty online! Specifications 2015 Dodge Challenger V8 6.2L/6.4L 3" Diameter Stainless Steel Tubing 3.5" Polished Stainless Tips Quad Split Rear Exit Competition Series Mufflers: 5" x 5" x 14" Round Tips Provided or Reuse OE Tips