Ramair Ramair SR Performance Induction Air Filter Kit for BMW E46 320i & 323i

The Ramair SR Performance Induction Kit for the BMW E46 320i & 323i is a high-quality upgrade that replaces the restrictive factory airbox with a precision-engineered twin-layer foam filter system. By improving airflow into the engine, this kit enhances throttle response, sharpens performance, and produces a sportier induction sound that transforms your driving experience. Constructed using a durable T304 stainless steel cage and Ramair’s Aeriform foam, the filter offers near-unrestricted airflow while maintaining excellent filtration levels to protect engine longevity. Designed and handmade in the UK, this kit is built to last and comes complete with all brackets, fittings, and step-by-step instructions for a straightforward installation. Whether you’re chasing performance gains or a more engaging sound, this induction kit is the ideal upgrade for your E46.

Key Features

• Increases airflow and throttle response by replacing restrictive OEM airbox

• Sportier induction sound for a more engaging driving experience

• High-performance twin-layer dry foam filter – MAF safe

• Durable T304 stainless steel cage support structure for strength and stability

• Custom polymer construction ensures guaranteed surface area for consistent performance

• Easy cleaning and reusability with Ramair maintenance kit (CK-003)

• Supplied with all necessary clips, brackets and bolts for installation

• 100% handmade in the UK with lifetime guarantee against manufacturing defects

Compatibility

• BMW 3 Series (E46)

  • 320i – M54 engine (1998–2001)

  • 323i – M52TU engine (1998–2000)

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.