Ferrea Subaru EJ20 36mm 5.97mm 19 Deg Radius Groove Stock 6000 Series Int Valve - Single (D/S Only) - F6077-1

Ferrea Subaru EJ20 36mm 5.97mm 19 Deg S-Flo Radius Groove Stock 6000 Series Intake Valve - Set of 8

Ferrea Subaru EJ20 36mm 5.97mm 104.44mm 19 Deg S-Flo Stock Competition Plus Intake Valve - Single

Ferrea Subaru EJ20 37mm 5.97mm 104.6mm 19 Deg S-Flo Radius Grv +1mm 6000 Series Int Valve - Single

Ferrea Subaru EJ20 37mm 5.97mm 104.44mm 19 Deg S-Flo +1mm Competition Plus Intake Valve - Single

Ferrea Subaru EJ20 37mm 5.97mm 104.6mm 19 Deg S-Flo Radius Grv +1mm 6000 Series Int Valve - Set of 8