The BMC Air Filter FB473/04 is engineered for Porsche 911 models built on the 997 platform—including Turbo (3.6 L), GT2, GT2 RS, and GT3 RS variants. It drops into the factory airbox with no modifications needed.
Italian-made and crafted using BMC’s full-moulding process, this washable air filter combines oiled cotton gauze with epoxy-coated alloy mesh. It captures contaminants as small as 7 microns—versus ~10 microns with stock filters—delivering sharper throttle response and better engine protection.
| OEM Cross Reference | PORSCHE 99711013173 |
| Compatible Models |
Porsche 911 (997 chassis): • Turbo 3.6 L (2006–2009) • GT2 3.6 L (2007–2009) • GT2 RS 3.6 L (2010–2012) • GT3 RS 3.8 L (2009–2011) |
| Dimensions (mm) | 631 × 187 |
| Filtration Efficiency | Captures particles ≥ 7 microns (versus ~10 μm OEM) |
| Material | Pre-oiled cotton gauze with epoxy-coated alloy mesh |
| Construction | Full‑moulded, seamless panel frame |
| Maintenance | Washable and re‑oilable using BMC cleaning kit |
| Warranty | 2‑Year Limited Coverage |
Originating from Formula 1 and endurance racing design, BMC filters bring elite-level airflow and filtration to street applications. The FB473/04 filter ensures cleaner, cooler, and more efficient engine breathing with zero disposable filter waste.
Have questions about fitment or installation? Check our Installation Guide or explore more options in our Porsche Air Filter Collection.
Order your BMC FB473/04 air filter today—for pure airflow, peak engine protection, and lifetime performance in your Porsche 911.
BMC Air Filters are the premium air filters for any automobile. BMC began manufacturing air filters in 1990, and since then have become the standard for professionals and enthusiasts alike. The air filters manufactured by BMC are made to stop smaller particles than OEM paper filters while still flowing a higher volume of air, all helping to increase your vehicle’s power.
BMC air filters are manufactured in Italy using high quality, multi-layered cotton gauze that is soaked in a low viscosity oil. Harmful materials which carry a negative charge are caught in the positively charged oil, separating these materials from the air your engine is breathing. The oil soaked cotton is then covered with an epoxy coated alloy mesh. This epoxy coating protects from petrol fumes and oxidation. BMC’s filter frames are crafted using a “Full Moulding” technique, creating a single mould without any welded joints, enhancing rigidity and helping avoid easy breakage under spirited driving. All of this together creates the best air filter available for your automobile.
BMC filters are also 100% rechargeable by using a BMC washing kit. Whenever the filter needs serviced it can be completely rejuvenated by a washing and re-oiling procedure. Stock filters need to be replaced frequently and are not washable. BMC filters never need to be replaced, only washed. This makes a BMC air filter more cost effective than stock filters, and also reduces environmental waste.
With a BMC air filter you will experience higher performance, more protection for your engine, and lower operating costs than stock paper filters. Winning race teams from Formula 1, 24 Hours of Le Mans, WRC and more have all used the “Choice of Champions” in their cars. It’s easy to see why adding a BMC filter is the easiest and most effective modification for your vehicle. Your automobile deserves a filter that was designed by Italian engineers specifically for its air box. Unleash your car’s untapped potential with the best performing air filter on the market.
Returns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received a filter other than the one ordered or a defective item, etc.).
Returns are unavailable for special order filters that we do not normally stock. Be sure the filter you are asking us to special order is the correct one for your vehicle. Prior to ordering we will assist you with any questions regarding the filter you are requesting.
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, please Contact Us with your order number and details about the product you would like to return. We will respond quickly with instructions for how to return items from your order.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Most orders are shipped out the same day they are placed. Cut-off time for same day shipping in 4pm EST.
Please also note that the shipping rates for many items we sell are weight-based. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
