Ferrea Nissan RB25DET 35.12mm 5.97mm 86.7mm +1mm Comp Plus Int Valve - Single (Drop Ship Only) - F2152P-1

Ferrea Nissan RB25DET 35.12mm 5.97mm 86.7mm 15 Deg S-Flo +1mm Comp Plus Intake Valve - Set of 12

Ferrea BMW M50 33.95mm 5.97mm 106.1mm 12 Deg S-Flo +1mm Trpl Grv Comp Plus Int Valve - Single

Ferrea Audi 1.8T 20V/2.7T 30V 27.9mm 5.97mm 24 Deg S-Flo +1mm Trip Grv Comp Plus Int Valve - Single

Ferrea Nissan TB48DE 39.5mm 6.96mm 100.02mm 12 Deg S-Flo +1mm Comp Plus Intake Valve - Single

Ferrea Subaru EJ20 37mm 5.97mm 104.6mm 19 Deg S-Flo +1mm Competition Plus Intake Valve - Single