− Decrease quantity for Ferrea Nissan RB25DET 34.12mm 5.97mm 86.7mm 15 Deg S-Flo Stk Comp Plus Intake Valve - Set of 12 Quantity + Increase quantity for Ferrea Nissan RB25DET 34.12mm 5.97mm 86.7mm 15 Deg S-Flo Stk Comp Plus Intake Valve - Set of 12 Out of stock