BMC Air Filter FB798/20 – Porsche 991 Turbo / Turbo S (991.1 & 991.2)

High-performance BMC FB798/20 washable panel air filter designed as a direct OEM replacement for Porsche 911 Turbo and Turbo S models (991 & 991.2). Improves airflow, filtration efficiency and engine responsiveness while remaining fully reusable.

Product Description

The BMC FB798/20 Performance Air Filter is engineered to replace the factory paper air filter in Porsche 911 Turbo models with a high-flow, reusable alternative designed for both road and track use.

Manufactured in Italy using multi-layer cotton gauze soaked in low-viscosity oil, the FB798/20 allows increased airflow while maintaining exceptional filtration efficiency. This construction captures particles as small as 7 microns, providing superior engine protection compared to standard paper filters.

BMC uses a Full Moulding production process, creating the filter in a single mould without welded joints. This results in improved durability, optimal sealing in the factory airbox and long-term reliability under high temperatures and engine loads.

Unlike disposable paper filters, the FB798/20 is washable and reusable, allowing it to be cleaned and re-oiled using the BMC regeneration kit. This provides a long-term performance upgrade that can last the lifetime of the vehicle.

Designed as a direct drop-in replacement, installation is simple and requires no modifications.

Key Features

• Direct OEM replacement performance air filter

• Increased airflow vs factory paper filters

• Multi-layer oiled cotton gauze filtration

• Filters particles down to 7 microns

• Washable and reusable design

• Full moulded frame construction for durability

• Improves throttle response and engine efficiency

• Direct fit installation – no modifications required

Technical Specifications

• Product Code: FB798/20

• Filter Type: Performance panel filter

• Filtration Material: Multi-layer oiled cotton gauze

• Frame Construction: Full moulded rubber

• Washable: Yes (BMC cleaning kit recommended)

• Replacement Interval: Clean and service periodically

Compatible Vehicles

The BMC FB798/20 air filter fits the following Porsche models:

Porsche 911 (991) – 3.8L Twin-Turbo Flat-6

• 911 Turbo – 520 hp (2013–2016)

• 911 Turbo S – 560 hp (2013–2016)

Porsche 911 (991.2 Facelift) – 3.8L Twin-Turbo Flat-6

• 911 Turbo – 540 hp (2016–2019)

• 911 Turbo S – 580 hp (2016–2019)

• 911 Turbo S Exclusive Series – 607 hp (2017–2019)

These vehicles use the 3.8-litre turbocharged flat-six engine found in the 991-generation Turbo models.

Why Choose BMC?

BMC air filters are trusted across motorsport and OEM performance applications due to their advanced filtration technology and airflow efficiency. Their cotton gauze construction helps maintain optimal intake airflow while protecting the engine from contaminants, making them a popular upgrade for performance vehicles worldwide.