Vance & Hines Big Shots - Staggered 47919 Feature the revolutionary Power Chamber design; a unique cross-over system that increases horsepower and torque Armed with full-coverage 2 1/2in heat shields that are essentially blue-proof for long-lasting style Like all Vance &amp; Hines systems, these feature a superior fit and an unrivalled finish in either chrome or race-quality black ceramic coat Meticulously finished billet end caps Removable baffles and all mounting hardware included