Active filters
Direct replacement vented dipstick that reduces blowby pressure and improves rev response and MPG. Two venting options and two oil-level reading methods (FHS/FHU). Made in the USA. Use a glove — dipstick gets hot.
- Reduces oil from head breathers on M8 engines
- Boyesen one-way reed valve vents crankcase pressure
- No dipstick hose required
- Includes hose and breather filter
High-flow, reusable air cleaner kit with snap-in velocity stack, integrated breather, mounting hardware and rain sock. Dyno-tested — ~8 hp gain over stock.
Reliable replacement exterior shield. Made in the USA.
Lengthened intake runners and a high-flow 2.5” washable/reusable filter deliver improved air velocity and horsepower. One-piece design simplifies installation and creates a clean look. Made in the USA.
Lengthened intake runners for increased air velocity and volume; one-piece design for easier installation; washable, reusable 2.5" filter; dyno-tested for horsepower gains.
High-flow BA air cleaner kit with washable 2.5" filter and performance-tested velocity stack. Made in the USA.