33mm diesel swirl flap shutters for BMW E39, E38, E53, E83, E60, E65, E90, E91, E92, 320d and 730d.

FEATURE: Engines often experience problems with the intake manifold swirl flaps. Loose mounting bolts can cause serious engine damage. The simplest solution to prevent this damage is to replace the swirl flap plugs with these. The AW-5083 aluminum alloy is characterized by high fatigue strength, excellent weldability, and corrosion resistance. It is suitable for hardening and protective anodizing. This alloy is used in the automotive industry, shipbuilding, mechanical engineering, welded structures, foam mold manufacturing, and general-purpose equipment construction. Kit of 4 x 33mm plugs with intake manifold gaskets. Replacement intake manifold swirl flaps (33mm) with Viton® O-rings resistant to oil derivatives, as well as high and low temperatures. The plugs are machined from high-quality aluminum using state-of-the-art CNC technology. Easy installation. Directly replace your existing swirl flaps: simply insert and screw them in. Your vehicle's performance will remain unchanged, and you may even see an improvement if your swirl flaps are worn. SPECIFICATIONS: Materials: Plastic and aluminum; Colors: 4 colors; Diameter: 33 mm; Weight: Approx. 20 g (per piece); Quantity: 1 set (some accessories shown in the image are not included). Note: Due to differences in monitors, the actual color of the item may differ slightly from the color shown. Package contents: 6 swirl flaps for diesel engines.