PRO CIRCUIT 4" Quiet Insert - 1-5/8" PC4012-0006 Argon Handguard Mounting Kit The Fi2000R O² digital fuel

The Fi2000R O² digital fuel processor is designed to work with all H-D exhaust systems (stock or aftermarket) equipped with oxygen sensors in place (closed-loop design) Works much like a carburetor jet kit with adjustments similar to the air-mixture screw

To securely mount the fender kit to the R3's unique tail section the this kit features an oversized plate mount that completely covers the open gap created when the stock fender is removed

works with stock or heavy-duty diaphragm spring

Includes friction plates

PRO CIRCUIT 4" Quiet Insert - 1-5/8" PC4012-0006 Argon Handguard Mounting Kit The Fi2000R O² digital fuelQuite Tips inserts produce a more subdued exhaust note