Radium Engineering Radium Engineering Mazda 13B-REW ACV Block Off - 20-0449 Block off plate for Mazda 13B-REW ACV on intake manifold. Necessary to use Radium fuel rail 20-0447.This Part Fits:YearMakeModelSubmodel1993-1995MazdaRX-7Base1993MazdaRX-7R11994-1995MazdaRX-7R21993-1995MazdaRX-7Touring $29.95 $28.45
