FEULING ROCKER BOX BREATHERS (M8 & TWINCAM) LIGHTING_RAMJET RACING but they are a must

but they are a must if your engine has suffered even a minor problem that created metallic particles or debris

If you’d like to step away from the traditional “full coverage” fender style

If you already have a SAE pigtail

39mm Dyna / FXR / Sportster : Tubes do not work with FXDX or FXDXT factory cartridges

Syringe has a capacity of 60 ml

FEULING ROCKER BOX BREATHERS (M8 & TWINCAM) LIGHTING_RAMJET RACING but they are a mustAvailable for M8 or Twin cam engines! M8 Engines '17+ Machined from billet 6061 aluminum with square surfaces, promoting excellent umbrella valve sealing longer main breather exit nipples with dual O rings to promote better breather system sealing. Properly sized breather inlets and location for optimum engine breathing. Unique design maximizes breather volume and allows for easy serviceability. Breather bodies have multiple drain ports located on the