Intake Manifold Swirl Flap Blank Plugs for Alfa Romeo

Intake Manifold Swirl Flap Blank Plugs are CNC-machined billet aluminum inserts designed to seal swirl flap passages in compatible 1.9 engines from Alfa Romeo, Fiat, Vauxhall and Saab. By replacing or bypassing the swirl flap with a solid blank, you can reduce potential rattle and debris issues, improve throttle response, and simplify maintenance when removing the swirl flap system. The blanks are built from aluminum for strength and a precise, leak-free seal under engine intake temperature conditions.

Please note: This listing covers manifolds with part numbers 55206459, 55190238, 55194739, 55206460, 2.03462.01, 2.03462.00W. There are two manifold types, so you must check the part number on your intake manifold before ordering. Vehicle examples affected include Alfa Romeo 147, 156, 159, GT, Stilo, and various Vauxhall/ Saab 1.9 engines as detailed in the compatibility list.

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Benefits & Tips

• Benefit: Seals swirl flap passages to prevent debris ingress when removing swirl flaps and can improve engine response in bypassed setups.
• Tip: Ensure the blanks sit flush in the manifold bore and verify compatibility with your exact manifold type before installation.
• Tip: Keep the blanks organized with your maintenance tools for easy future reinstallation if needed.

Product specifications

• Material: aluminum
• Origin: Mainland China
• Model Name: BOP12
• Application: For Alfa Romeo Fiat Vauxhall SAAB 1.9
• Warranty: Yes
• Part numbers covered: 55206459, 55190238, 55194739, 55206460, 2.03462.01, 2.03462.00W

Package includes:

• 4X Large cnc machined billet aluminium blanks
• 1X Small cnc machined billet aluminium blank

Warnings / Reminders

• Check the part number on your intake manifold before ordering — there are two manifold types. This listing only covers manifolds with part numbers: 55206459, 55190238, 55194739, 55206460, 2.03462.01, 2.03462.00W.
• There is a detailed compatibility list; verify that your exact vehicle and engine variant matches the supported models before purchase.