Vance & Hines Stainless Steel Hi-Output 2-Into-1 Exhaust for '86-15 FXS/FLS/FLST Models 
Engineered especially for high output engines
Dyno tested and developed to increase volumetric efficiency critical to extracting maximum horsepower from high output engine modifications
1 3/4 inch to 2 inch tapered headpipes with 2 1/2 inch inlet to megaphone and 4 inch to 4 1/2 inch stepped muffler body
2 1/2 inch to 3 1/4 inch baffle with anti-reversion cone
All stainless steel construction with TIG welding and race-inspired brushed stainless "Works" finish
Contoured laser-cut heat shields
Flat plane 12mm and quick access 18mm oxygen sensor ports for wideband tuning capability unless noted
Made in the U.S.A.
NOTE: Stainless steel systems will naturally discolor; this is expected and considered normal. High performance engine tuning utilizing a dynometer will likely result in severe discoloration.