Vance and Hines 2-into-1 Pro Pipe Exhaust System for Harley Davidson 2012-2015 - One Size Featuring a distinctive stepped megaphone design, this latest evolution in the Vance & Hines 2-into-1 performance legacy improves performance over its predecessors. Broad/Usable Torque Increase Stepped Headers, Large Merge Collector Quiet and Competition Baffl es Available 4.5-inch Muffl er Body At Exit