Ferrea Subaru EJ20 36mm 5.97mm 104.6mm 19 Deg S-Flo Stk Competition Plus Intake Valve - Set of 8 - F1520P

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

Ferrea Nissan RB25DET 34.12mm 5.97mm 86.7mm 15 Deg S-Flo Stk Comp Plus Intake Valve - Set of 12

Ferrea Acura K20 36mm 5.47mm 109.3mm 20 Deg S-Flo +1mm Competition Plus Intake Valve - Set of 8

Ferrea VW 1.8T 20V 26.9mm 5.97mm 105.1mm 24 Deg S-Flo Stk Grve Comp Plus Intake Valve - Set of 12

Ferrea Honda F20C/F22C 36mm 5.48mm 109.8mm 20 Deg S-Flo Stock Comp Plus Intake Valve - Set of 8