Active filters
Lengthened intake runners and a high-flow billet velocity stack deliver increased airflow and balanced dynamic flow. One-piece design and a washable 2.5" filter simplify installation and service; dyno tested and made in the USA.
1-3/8" velocity stack for BA air cleaners with a fade-resistant finish; enables color customization.
1-3/8" velocity stack for BA air cleaners. Fade-resistant finish and customizable color combinations.
Complete rebuild kit includes spacer, gaskets, O-rings and bolts. Made in the USA; restores sealing and performance.
Complete rebuild kit for air cleaner. Includes spacer, two gaskets, four O-rings and six bolts. Made in the USA.
Field-serviceable breather line kit with filter element and quick-disconnect fitting. Made in the USA. Fits vented dipsticks.
Includes internal cap O-ring and set screw. Made in the USA. Fits all Feuling Vented Dipstick models.
Rebuild kit for Feuling® and OEM Twin Cam Rocker Box breathers. Includes two umbrella valves, two filters and four gaskets. Made in the USA.
- Prevents diagnostic trouble codes when installing aftermarket filters and exhaust
- Enables air/fuel ratio changes for racing applications
- Made in the USA
- For off-road racing use only
Complete plug-in kit for quickly auto-tuning front and rear fuel curves with dual-channel wide-band oxygen sensor interface. Includes sensors, bungs, cables, PC Link software and tuning guide. Race use; professional installation required. Does not support VVT.
Auto-tune EFI control module kit with dual-channel wide-band interface, sensors, PC Link software, and installation/tuning guide. Race use; professional installation required.