Contact Form

In Stock - Available from Supplier Dispatch between 23 September - 30 September.
WORLDWIDE SHIPPING
EASY RETURNS
SECURE SHOPPING
24/7 SUPPORT
WORLDWIDE SHIPPING
EASY RETURNS
SECURE SHOPPING
24/7 SUPPORT

Enhance the performance of your BMW with the MMX Performance BMW N55 Cotton Air Filter, designed specifically for F2x and F3x models such as the M135i, M235i, 335i, 435i and M2. This premium replacement panel air filter offers an easy, warranty-friendly upgrade that improves your engine’s breathing, resulting in better airflow, enhanced performance, and even fuel economy gains.

The MMX Performance BMW N55 Cotton Air Filter replaces the restrictive factory paper filter with a high-quality cotton gauze design. By eliminating the airflow limitations of the stock filter, this panel air filter ensures a smoother, more efficient flow of air to the turbocharger. This improved airflow delivers tangible benefits, including sharper throttle response, more power, and an overall enhanced driving experience.

Our testing has demonstrated that the MMX Performance BMW N55 Cotton Air Filter can provide up to 15Nm of additional torque on a standard N55 engine. While subtle, this improvement is noticeable during everyday driving, making acceleration feel smoother and more responsive. Whether cruising through city streets or pushing the limits on a backroad, this filter adds a layer of performance you can feel.

Installing the air filter is effortless, as it is a direct replacement that perfectly fits into your car’s factory airbox without requiring any modifications. Engineered to OEM standards of quality and design, this filter ensures durability and a factory-like fit while delivering superior airflow and filtration capabilities. Its robust construction guarantees long-term performance, offering great value for BMW enthusiasts.

Beyond performance benefits, the MMX Performance air filter also enhances induction noise, adding a subtle yet satisfying sporty sound to your engine. This makes every drive more engaging, giving you both the auditory and performance advantages of a high-quality upgrade.

APPLICATIONS

Applicable for BMW F Series models with N55 engines.

KEY FEATURES

  • Increased engine performance
  • Improved induction noise
  • Designed to be used with the OE air filter housing
  • Easily fitted and completely washable.
  • Once fitted this product will last the lifetime of your engine

ADDITIONAL INFORMATION:

Brand

PREPREG is a common term for a reinforcing fabric such carbon which has been pre-impregnated with a resin system. This resin system (typically epoxy) already includes the proper curing agent. As a result, the prepreg is ready to be laid into the mold without the addition of any more resin. In order for the laminate to cure, an autoclave production process is used, a combination of high pressure and heat.

  • Maximum strength and performance characterictics. In a hand layup production process, it is difficult to achieve 50% fabric and 50% resin content.  Typical hand laminates, even when vacuum bagged, end up with a significant amount of excess resin. Excess resin increases brittleness and reduces overall strength properties. On the other hand, most prepregs contain around 35% resin. This is ideal for maximum cured properties and generally impossible to achieve in normal hand lamination.
  • Uniformity and repeatability. The prepreg is of uniform thickness and each part coming out of the mold may theoretically be the same. Vacuum bagging technology may have some errors in processing, but prepreg ensures production consistency.
  • Reduce curing time. After the thermal curing cycle, no need to wait for the standard 48 hours can be fully cured.
  • Aesthetics. Although prepreg processing still requires mold preparation and demoulding, prepreg processing eliminates air bubbles, makes it easier to obtain a smooth, glossy surface as well as eliminates any seaming lines.

Thanks for your review!

Your feedback helps us improve our service.

Please log in to submit a review.

Only logged in customers who have purchased this product may leave a review

We offer free tracked shipping on all orders within mainland EU. Orders to remote areas such as Malta, Cyprus, and Iceland may incur a surcharge. Worldwide shipping is also available—please contact us for a quote.

Most orders dispatch within one business day (Monday to Friday). EU delivery takes 3–5 working days from dispatch, and tracking details will be provided via email once your order has shipped.

Please note that import taxes may apply outside the EU, and these are the responsibility of the buyer. Some items may ship directly from our suppliers and may have varying delivery times. If an item is out of stock, we will contact you to discuss the available options.

📦 View full shipping policy

RETURNS

Changed your mind? You can return unused, uninstalled items in original packaging within 30 days of delivery. Return shipping is the customer’s responsibility unless the item is faulty.

Custom, used, or built-to-order items are non-returnable.

Once we receive and inspect your return, refunds are typically processed within 10 business days.

If your item is damaged or incorrect, contact us within 48 hours with photos and order details.

📄 View full refund policy

WARRANTY

All VA and VA Motorsports products come with a 1-year limited warranty covering manufacturing defects and fitment issues. For third-party items, warranty terms vary by brand—please check the product listing or contact us for details.

This warranty does not cover wear and tear, incorrect installation, cosmetic damage, labor, or third-party costs.

To start a claim, email us with your order number, issue description, and photos. If the claim is approved, we’ll offer a replacement, store credit, or a refund.

📄 View full warranty policy

FREQUENTLY ASKED QUESTIONS (Faq)

Yes, we do ship worldwide. However, we recommend contacting us before placing your order, as the price only covers the product and does not include shipping costs

Each product listing includes detailed compatibility information. Please review it carefully to ensure the part fits your specific vehicle model and year. If you’re unsure, feel free to contact us with your vehicle details, and we’ll be happy to assist you.

Yes, we do provide this service in our workshop. Our skilled technicians can professionally install your body styling and performance parts to ensure a perfect fit and optimal performance. Please contact us to schedule an appointment or for more information.

Yes, customers within mainland EU can enjoy free shipping on all orders. However, in rare cases, customers from non-EU or remote areas may be contacted about an additional shipping fee. For further questions, feel free to contact us.

Shipping times vary based on your location and the product ordered.

Take note, that in-stock products will be shipped the next working day. Otherwise, your order will be dispatched as stated on its product information.

For customers within the EU, delivery typically takes 3-5 working days from the dispatch date.

For international customers, orders are generally delivered within 5-10 working days from the dispatch date.

We accept returns on unused and uninstalled items within 14 days of purchase. The product must be in its original packaging and condition. Shipping fees are non-refundable, and return shipping costs are the buyer's responsibility.

MMX Performance BMW N55 Cotton Air Filter F2X F3X m135i m235i 335i 435i M2
MMX Performance BMW N55 Cotton Air Filter F2X F3X m135i m235i 335i 435i M2