Air Filters
Includes special BMC detergent and an oil applicator - in either spray bottle or liquid form.

HOW IS A BMC FILTER REGENERATED?
We recommend using original BMC kits only, as other products may not be effective or may damage the filter permanently, thus invalidating the warranty.
We recommend regenerating the filter (washing + oil application) every 20.000 – 25.000 km to ensure best performance and long service life.
This value is a rough estimate and can vary based on the climatic conditions and the ground on which the vehicle is used (sand, dirt roads, etc.).
The various steps to be carried out in order to regenerate the filtering element are indicated in the instructions contained in the regeneration kit.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
WA2
The product you are viewing cross references to these numbers

This Product Fits:
Porsche 911 (930) Turbo 3.0L 1975-77
Porsche 911 (930) Turbo 3.2L 1977-90
Porsche 965 Turbo 3.3L 1990-93
Porsche 965 Turbo 3.6L 1993
K&N® washable, reusable High-Flow Air Filters™ feature a state-of-the-art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an increase in horsepower.
Each performance air filter is reusable, engineered to last for the entire lifespan of your vehicle, and backed by K&N's 10-Year/Million Mile Limited Warranty.
K&N drop-in replacement filters are designed to install easily into your factory air box.
Works with Original Equipment Manufacturer Vehicle Electronics.
Environmentally Friendly, K&N Reusable Air Filters
Upgrade today and start enjoying superior airflow and superior performance from K&N's most popular product!
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
33-2530
The product you are viewing cross references to these numbers
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93

K&N Recharger Kit 99-5000EU is designed for cleaning your K&N oiled cotton air filter when it is time to be serviced.
Part 99-5000EU is labeled in English, Spanish, Swedish, Polish and Czech for use in Europe.
The kit comes with K&N Power Kleen air filter cleaner and air filter oil.
99-5000EU will restore air flow efficiency and will bring your K&N oiled cotton air filter to like new condition. K&N Power Kleen works to dissolve the dirt build up and old filter oil, and can be washed away with water. After the air filter fully dries re-oil your air filter then reinstall it.
This Recharger Kit comes with a 204 milliliter aerosol spray can of oil and a 355 milliliter K&N pump bottle of Power Kleen air filter cleaner.
NOTE: This product has got shipping restrictions for export
Please note this item can not be sent out by plane. Deliveries only to European countries by road service
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99-5000EU
The product you are viewing cross references to these numbers
Fits:
Porsche 964 Turbo (965) 1991-92
Porsche 964 Turbo (965) 1993-94
Kit Contents:
Fabspeed’s high-flow sport headers are designed to retain full cabin heat functionality while unlocking noticeable performance gains. Thanks to a shorter exhaust gas path and smooth mandrel bends, these headers dramatically improve exhaust flow - boosting power, sharpening throttle response, and reducing turbo lag, with boost onset up to 1500 RPM earlier than stock. They also deliver a mild increase in volume, a more pronounced turbo spool sound, and a deeper, more aggressive exhaust tone.
- Constructed from 14-16ga CNC mandrel-bent T304L stainless steel with high velocity F1-style merge collectors for optimum exhaust flow.
- This system will include a drip accumulator with double swivels and Aeroquip lines with adaptors, plus graphite steel layered gasket for a leak proof seal.
- 7/8"custom braided oil lines with correct 30mm radius Porsche style ball end with OEM fittings will be included to replace the stock oil lines.
- Retains the stock cabin cockpit heat functionality.
- Simple DIY (Do-It-Yourself) bolt-on installation, no cutting or welding required.
- Backed by Fabspeed's Lifetime Warranty.
Fabspeed's Maxflo dual outlet muffler delivers a deep, aggressive exhaust note along with a significantly enhanced turbo spool sound—bringing out the true character of your 964 Turbo.
- Includes Fabspeed's Deluxe Outlet Tips; polished angle-cut ovals.
- Maxflo Mufflers are radius stress relieved, hydro-formed cases that are pulse TIG welded with 2000 degree ceramic fiber and stainless steel wool packing.
- Constructed from high-quality 14-16 gauge C.N.C. mandrel-bent T304L stainless steel for optimum flow and maximum durability.
- Complete 3.0" tubing for maximum flow.
- Includes 4.5" wastegate tip and all required hardware.
- Simple DIY (Do-It-Yourself) bolt-on installation, no cutting or welding required.
- Backed by Fabspeed's Lifetime Warranty.
Fabspeed’s high-performance intake system replaces the outdated, heavy steel factory airbox found on 930 and 964 Turbo (965) models - a design originally from the 1970s and '80s that traps heat like a Dutch oven and severely limits airflow. This factory setup bakes the intake air, reducing performance and efficiency. In contrast, Fabspeed’s Cold Air Intake is engineered to reduce weight and deliver significantly cooler, denser air directly to the engine - resulting in dyno-proven horsepower and torque gains.
- Saves maintenance time, and weighs much less, for better handling and cooler engine temperatures.- Increases horsepower and torque by +17.5 HP and +26 ft-lbs.
- Significant weight savings along with finally an uncluttered CLEAN to BE SEEN awesome engine bay.
- Cleans up engine bay for easier access for maintenance and car shows!
- Allows fitment of larger intercoolers versus banging into the steel heavy airbox.
- Supports up to 550+ horsepower.
- VIDEO- installation instructions and photos online. Super simple engineered system.
- Used and installed by a WHOs WHO of Porsche Turbo engine builders Worldwide!
- CAD Designed and DYNO developed 100% Guaranteed to be the very best air intake for your 964 Turbo!
- Backed by Fabspeed's Lifetime Warranty.
FITMENT NOTE: After the initial heat cycle, be sure to retighten all exhaust bolts to OEM torque specs to ensure a proper, lasting seal.
NOTE: This system replaces the factory catalytic converter with a high-flow setup and is not MOT compliant, meaning it is intended for race and track use only and must not be used on public roads. If you are located outside the UK, please check your local laws and regulations to ensure compliance before installation.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
FSPOR964TSPKG
The product you are viewing cross references to these numbers
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
Engine Tuning Performance Air Filters – Maximise Airflow and Power for Your Porsche
A performance air filter is one of the most effective and accessible upgrades for improving your Porsche’s engine performance and responsiveness. Designed to increase airflow while providing superior filtration, these filters enhance combustion efficiency, throttle response, and horsepower output — making them essential for both road and track enthusiasts.
At Design911, we offer a premium selection of high-performance air filters and engine tuning intake upgrades for Porsche models. Manufactured using advanced filtration media and precision-engineered housings, these filters deliver improved airflow without compromising protection. Whether you’re upgrading a 911 Turbo, Cayman GT4, or Boxster, our manufacturer-quality performance air filters ensure long-lasting performance and reliability.
What Do Performance Air Filters Do?
Performance air filters allow your Porsche’s engine to breathe more efficiently by reducing airflow restriction and enhancing fuel-air mixture quality.
Core Functions:
- Increase
airflow to the engine for better combustion and power.
- Filter
harmful particles such as dust, dirt, and debris to protect the
engine.
- Improve
throttle response and engine smoothness.
- Enhance
engine sound and performance feel.
- Support long-term engine health by maintaining clean airflow.
By optimising the air intake system, a performance air filter helps your Porsche deliver sharper acceleration, greater efficiency, and improved drivability.
Why Do Air Filters Fail or Degrade?
Air filters operate in a harsh environment, exposed to debris, oil vapour, and temperature extremes. Over time, they can become clogged or damaged, restricting airflow and reducing performance.
Common Causes of Failure Include:
- Clogging
from dirt, dust, or pollen build-up.
- Oil
contamination (especially in reusable filters).
- Physical
damage to the filter material or seals.
- Improper cleaning or maintenance.
- Extended service intervals causing reduced airflow.
Symptoms of a failing air filter include reduced engine power, poor fuel economy, hesitation under acceleration, or unusual intake noise. Replacing or upgrading ensures consistent performance and protection.
Why Replace with a High-Performance Air Filter?
Upgrading to a precision-engineered performance air filter restores and enhances your Porsche’s breathing efficiency. These filters are designed to provide a perfect balance between airflow and filtration, delivering measurable performance gains.
Key Benefits:
- Increases horsepower and torque output.
- Improves throttle response and fuel efficiency.
- Provides superior filtration for engine longevity.
- Constructed from durable, reusable materials.
- Direct-fit
compatibility for Porsche 911, Cayman, Boxster, Panamera and more.
- Ideal for performance tuning, track driving, or spirited road use.
Replacing restrictive stock filters with high-performance alternatives enhances both performance and reliability — essential for enthusiasts who demand the best from their Porsche.
Highlights:
- High-performance air filters for Porsche tuning and upgrades.
- Improved airflow, filtration, and power delivery.
- Reusable and washable filter options available.
- Engineered for precision fit and durability.
- Perfect for classic and modern Porsche performance models.
- Supports both performance gains and long-term engine protection.