Swirl Flaps Delete Kit for BMW 320d and 330d, Aluminum and Glass Fiber Construction for Improved Intake
Upgrade your BMW’s intake system with the Swirl Flaps Delete Kit for 320d and 330d. Crafted from a robust blend of aluminum and glass fiber, this kit provides a reliable, cost-effective solution to swirl flap failures while maintaining smooth engine breathing. It’s designed to replace the problematic swirl flaps, helping eliminate “dead spots” in the inlet tract and promoting cleaner, more consistent running across RPM ranges.
Main Description
This kit comprises six swirl flap blanking plates available in 22 mm and 33 mm sizes, specifically engineered to fit a wide range of BMW models. The end caps use the same material as the intake manifold and are reinforced with glass fiber, delivering hardness and durability comparable to aluminum while minimizing thermal expansion differences between components. Viton O-rings and gaskets are included, chosen for their resilience against engine oils and extreme temperatures, ensuring a reliable seal over time.
Swirl flaps commonly fail by loosening screws or breaking the spindle, which can lead to debris entering the engine and potential performance issues. By removing the swirl flaps and installing blanking plates, the engine’s inlet tracts remain consistently open, which can improve throttle response and engine running while reducing the chance of intake-related faults. This is a straightforward, effective approach to restore reliability without compromising daily usability.
Key compatibility notes: Interchange Part Numbers cover BMW 320d, 330d, 520d, 525d, 530d, and 730d. The kit is suitable for a broad BMW range, including E87, E46, E90/91/92, E39, E60/61, E38, E65, E83, E53, E70, and engines M47, M57. The relocation bracket feature aids precise installation and fitment, and the color is “as pictured.”
Benefits & Tips
- Benefit: Restores reliable intake flow by removing unstable swirl flaps, helping maintain consistent power delivery and cleaner combustion.
- Tip: During installation, verify the correct diameter (22 mm or 33 mm) for each port and replace existing seals with the included gaskets and Viton O-rings to ensure a leak-tight seal.
- Tip: This solution is particularly effective for models prone to swirl flap failure; consider professional installation if you’re not comfortable with BMW inlet systems.
Product Specifications
- Diameter: 22 mm and 33 mm (6 pieces total)
- Quantity: 6 Swirl Flap Blanking Plates
- Material: Aluminum & Glass Fiber (end caps reinforced with glass fiber)
- Gaskets: Viton O-Ring; engine oil and temperature resistant; includes oblong and round gaskets
- Color: as pictured
- Placement on Vehicle: Front
- Special Features: Relocation Bracket
- Interchange Part Number: for BMW 320d 330d 520d 525d 530d 730d
- OEM No.: for BMW 320d 330d 520d 525d 530d 730d
- Origin: Mainland China
- Manufacturer Part Number: XLB-1017
- Package Weight: 0.3 kg
Package includes:
- 6x Swirl Flap Blanking Plate
- 6x Oblong Gasket
- 6x Round Gasket
- 1x Bigger Round Gasket
Warnings / Reminders
- Compatibility: Designed for BMW swirl flaps with model ranges including E87, E46, E90/91/92, E39, E60/61, E38, E65, E83, E53, E70 and engines M47, M57; confirm model alignment before purchase.
- Installation: Professional installation is recommended to ensure proper fitment and sealing.
- Maintenance: After installation, monitor for any signs of exhaust or intake leaks and perform routine checks as part of standard maintenance.
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