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Jump on your Grom and have a blast with the new and improved Vance & Hines Hi-Output Hooligan exhaust system, now equipped with PCX™ technology. Our innovative PCX™ technology integrates a chambered high-flow catalyst that boosts torque and horsepower over previous generations of our Grom system, while also making it 49-state emissions compliant for the street.

Hand TIG welded and constructed of 304 stainless steel with spring-clip joints and a brushed finish, the Hi-Output Hooligan has the looks of a GP pipe and gives the Grom a healthy bark to level up the fun!

  • 304 Stainless Steel Construction
  • Full System; Header and Muffler
  • Brushed Finish
  • CNC Machined Billet End Cap
  • Laser Engraved Logo Badge
  • PCX™ (Power Chamber Exhaust) Technology
  • Chambered High-Flow Catalyst Cartridge
  • 49-State Emissions Compliant

WARNING: Cancer & Reproductive Harm –