− Decrease quantity for Air Filter, Magnum FLOW Pro 5R Intake Replacement Air Filter 4-1/2 IN F x 7 IN B x 4-1/2 IN T (Inverted) x 7 IN H Quantity + Increase quantity for Air Filter, Magnum FLOW Pro 5R Intake Replacement Air Filter 4-1/2 IN F x 7 IN B x 4-1/2 IN T (Inverted) x 7 IN H Add to cart