K&N E1946 High-Flow Original Lifetime Engine Air Filter - FORD P/U V8-7.3L DSL MSRP: $145.58 Was: Now: $90.99
K&N 33-2248 High-Flow Original Lifetime Engine Air Filter - FORD F SERIES P/U 7.3L-V8 TD MSRP: $101.90 Was: Now: $63.69