Ramair Performance Foam Replacement Air Filter for BMW 1.6 N45 & 2.0 N43 (70mm)

Upgrade your BMW’s airflow system with the Ramair Performance Foam Replacement Air Filter for N45 and N43 engines. This direct-fit panel filter replaces the restrictive OEM paper element, delivering improved throttle response, smoother performance, and superior dust filtration. Constructed from Ramair’s twin-layer Aeriform foam with a stainless steel support cage, it ensures long-lasting durability and maximum surface area for unrestricted breathing. With a rubber polymer surround for perfect OEM fitment, this filter is easy to install, clean, and reuse, making it a cost-effective performance upgrade backed by Ramair’s lifetime warranty against manufacturing defects.

Key Features

• High-performance twin-layer Aeriform foam design

• Stainless steel cage for strength and stability

• Rubber polymer surround for precise OEM fitment

• Direct replacement for inefficient paper filters

• Reusable and easy to clean with CK-003 maintenance kit

• Lifetime warranty against manufacturing defects (single user)

• Engineered for maximum airflow and dust filtration

Compatibility

This Ramair replacement air filter fits the following BMW models:

• BMW 1 Series (E81/E87)

  • 116i (2004–2011) – 1.6L N45

• BMW 3 Series (E90/E91/E92/E93)

  • 316i (2006–2013) – 1.6L N45

Filter Specifications:

• Length: 160mm (6.3")

• Width: 140mm (5.5")

• Shape: Circular

• Neck ID: 70mm

• Material: Dual-layer performance foam

Meta Title

Unless explicitly stated otherwise, all products sold by R44 Performance Limited are designated RACE ONLY and are solely for competition or off-road use limited to racing formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, may violate local, state, and Federal laws. R44 Performance Limited does not implicitly or explicitly confirm the legality of using any products it sells on public roads; that is entirely the responsibility of the consumer.

It is the responsibility of the customer to check with all federal, state local and environmental laws before ordering and installing a product. R44 Performance Limited is not responsible for any fees, fines or costs that a customer may incur as a result of failing to check with federal, state, local or environmental laws before ordering and installing a product.

We get a large number of custom orders and requests everyday, so as a result it is not always possible for us to keep every item in stock at all times in our warehouse. If you require the item urgently please contact our sales team here to check the stock before you make your purchase.

We totally understand if you're not certain a part will be compatible with your car, so we highly recommend contacting us here with your query. Our friendly sales team will then be in touch to confirm if this part is the correct part you are looking for.

All in stock products ship the same day if ordered before 2pm GMT

For out of stock items we will contact you with an estimated wait time if not otherwise specified above.

We offer worldwide shipping on all products. If upon receiving your product you wish to return; we offer a 30-day returns policy. For our in-depth returns information please follow the link. "R44 Returns Policy

All of our products come with a standard warranty of 1-3 years. This is dependant on the type of product however. For more details please see our warranty page here.