Performance Foam Replacement Air Filter – BMW 1 & 3 Series (N42, N43, N45, N46 Engines) – 80mm

Upgrade your BMW’s intake system with this high-performance foam replacement air filter, precision-engineered for models powered by the BMW 1.6L (N45) and 2.0L (N42, N43, N45, N46) petrol engines. Designed as a direct replacement for the restrictive OEM paper filter, this foam filter delivers superior airflow, enhanced throttle response, and long-lasting engine protection.

Key Features:

• High-Performance Foam Technology – Twin-layer, fully reticulated Ramair Aeriform foam provides maximum dust filtration without compromising airflow.

• Direct OEM Fitment – Fits seamlessly into the factory airbox for easy installation, no modifications required.

• Durable Motorsport-Grade Construction – Stainless steel cage support structure ensures strength and stability under demanding conditions.

• Washable & Reusable – Can be easily cleaned and maintained using the Ramair CK-003 filter cleaning kit.

• Optimized Surface Area – Custom-blended polymer surround provides a precision seal and extended service life.

Technical Specifications:

• Filter Length: 160mm (6.3")

• Filter Width: 140mm (5.5")

• Filter Shape: Circular

• Filter Neck ID: 80mm (3.1")

• Material: Dual-Layer Performance Foam

Why Upgrade?

Unlike disposable paper filters, this high-performance foam filter is reusable, washable, and engineered using motorsport technology. It helps improve throttle response and engine breathing, making it a cost-effective performance upgrade for everyday driving and spirited use.

 Vehicle Compatibility

This filter is suitable for multiple BMW petrol models across the 1 Series, 3 Series, and X1, powered by N42, N43, N45, and N46 engines.

BMW 1 Series (E81/E82/E84/E87/E88)

• 116i – 2004–2013 (N42/N45/N43/N46)

• 118i – 2004–2013 (N42/N43/N46)

• 120i – 2004–2013 (N42/N43/N46)

BMW 3 Series (E90/E91/E92/E93)

• 316i – 2006–2013 (N45N)

• 318i – 2005–2013 (N43/N46)

• 320i – 2005–2013 (N43/N45/N46)

BMW X1 (E84)

• X1 2.0i – 2009–2015 (N46)

The standard shipping rate applies to orders within the continental United States. If you intend to place an order outside of the continental US, please reach out to support@x-ph.com for assistance.