1996–2016 Twin Cam Bagger - Big Bore 4.5 Color:Polished All Pro Flo header systems

All Pro Flo header systems will marry existing SPC mufflers as long as they are both for the same bike

allows for stock or autotune sensors

We fit *all models 2018-2025 except breakout & fatboy

Precisely pie cut and tig welded back together by hand

1996–2016 Twin Cam Bagger - Big Bore 4.5 Color:Polished All Pro Flo header systems07' 08' baggers require o2 extensions 4. 5 high flow performance rolled cone muffler with stepped baffle from 2 to 2 inches. Increases bottom to mid range torque and horsepower on all motors. Tuned properly can accommodate 88" to 143". 065 stainless steel headers, stepped from 1 to 1 7 8 to 2 at the collector Hand tig welded from top to bottom Machined stainless steel header collars 18mm o2 bungs with 12mm adapters, allows for stock or autotune