6 PCS 33mm Diesel Swirl Flap Blanks Replacement Bungs with Intake Manifold Gaskets for BMW 320d 330d 520d 525d 530d 730d

Features:
6 pcs 33mm bungs, one plate for each cylinder.
With intake manifold gaskets kit.
The bungs are machined from high grade aluminium using state of the art CNC technology.
The O rings are supplied with the bungs.
Easy to install. Directly swap with your existing swirl flaps, simply push in and screw in place.
There will be no difference in performance from you vehicle, you may even notice an improvement if your swirl flaps have deteriorated.