Air Induction Kits
High flow with excellent filtration.

Fits:
Porsche 911 (63-83) 2.7L 09/73 - 06/77
Porsche 911 (63-83) 2.7 S Carrera 08/73 - 01/76
Porsche 911 (63-83) 3.0 SC 08/82 -07/83
Porsche 911 (63-83) 3.0 SC Carrera 03/74 - 10/83
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3603001209
The product you are viewing cross references to these numbers
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC

This Product Fits:
Porsche 911 1966-76
Porsche 914 1970-76
Cylindrical Filter Size:
- width - 140mm
- height - 220mm
- diameter - 90mm
BMC air filters are designed and produced to ensure a higher air flow than original paper filters. In F1, for example, BMC cotton filters minimize the loss of air flow pressure passing through the air filter; this way ensures the best conditions for full exploitation of maximum power. Therefore the benefits of replacing the original paper filter with BMC cotton air filter, produced using the same technology and materials as the F1 air filters, are evident.
DESIGN AND MATERIALS
Qualified engineers using advanced software and expert technicians using the latest technologies produce BMC air filters. An F1 filter must be very light, must be made of the best raw materials and must improve performance. For this reason we use only alloy mesh with epoxy coating to ensure protection from petrol fumes and from oxidization due to the humidity of the air. The filtering material is composed of a special cotton gauze soaked with low-viscosity oil to give you the best air permeability.
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera

SOUND:
The Porsche factory Early 911 air-intake snorkel is designed to muffle the induction note of the engine to keep the engine QUIET at all times. The Fabspeed Motorsport Champgane colored CNC billet aluminum high-performance OPEN STYLE airbox cover lets all that glorious air cooled flat six TRULY BREATHE and you get more Glorious Flat-Six music and induction growl in under 10 minutes.
FEATURES:
• Fits all early model Porsche 911 Carreras (1963-1973), with plastic air box plenum. Simply remove old "constricted intake snorkle by removing OEM wingnuts and or fasteners and reattach CNC billet aluminum Fabspeed CUP intake reusing Porsche hardware.
• Super simple Ultimate intake UPGRADE for any & all early 911 cars.
• Significantly improved power, throttle response and cleaned up improved high-tech engine appearance.
• Guaranteed more sports car sound.
• Champagne anodized billet aluminum artwork with engraved 911 RS on the face.
• Stunningly beautiful and elegant. Like Jewelry for your 911.
• Computer assisted design, CAD, then CNC machined from billet aluminum material and then anodized champagne to MATCH all 911 factory GOLD cadmium plated hardware.
• Direct replacement for the early Porsche 911 OEM intake snorkel - that is super restricted convoluted.
• Any and all early 911 Engines simply want to BREATHE EASY- the Fabspeed CUP intake cover 100% delivers.
• Simple installation , DIY, doityourself, and is Easily Reversible for Concours purposes.
• All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty
Please note: This is a special-order item manufactured to order. In some cases, please allow 4 – 5 weeks for the delivery. Special order items cannot be cancelled from this supplier once your order has been placed.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
FSPOR911ABX27
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)

Fits:
Porsche 911 1965-89
Product Specifications:
Part Number: E-3671
Product Style: Oval Air Filter
Air Filter Shape: Oval
Height: 3.25 in (83 mm)
Inner Wire: No
Inside Length: 10.75 in (273 mm)
Inside Width: 4 in (102 mm)
Outside Length: 12 in (305 mm)
Outside Width: 5.25 in (133 mm)
Top Style: Open
Top Material/Finish: None
Filter Material: Cotton Gauze
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.
E-3671
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50

This Product Fits:
Porsche 911 with carbs
K&N brand air filter, part number 56-1240 which is now 56-1770-1 this is for Weber 40/46 IDA (Triple carb) as fitted to Porsche 911.
K&N Custom Air Filter kits are designed to allow the maximum performance from your carburettors, yet keep the dirt on the outside where it belongs. These assemblies come with top and base plates and the famous K&N High-Flow Washable Air Filter.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
56-1770-2
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50

Fits:
Porsche 911 1973-89
Prevents costly airbox explosions, installed with the engine and air box in place. 911 engines since 1973 have had the bad habit of backfiring and blowing a hole an the air box. 911 POP VALVE is installed inside the air box and when a backfire occurs the valve will instantly open and release the backfire pressure. The POP VALVE then automatically closes and the angine continues to run. The POP VALVE has no effect on the performance or fuel mileage.
CIS Pop Off Valve Installation Click Here
For Fitting Instructions CLICK HERE
Please note the glue is not included with the air valve.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
911901522
The product you are viewing cross references to these numbers
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)

Can be adapted to various vehicles.
Filter height: 6 inch / 15cm
Filter diameter at base: 7 inch / 18cm
Funnel height: 8 inch / 20cm
Filter diameter at base: 3,5 inch / 9cm
Overall height: 13inch / 33cm
Engine Tuning Air Induction Kits – Unlock Your Porsche’s True Breathing Potential
An air induction kit is one of the most effective tuning upgrades for increasing power and responsiveness in your Porsche. Designed to replace restrictive stock airboxes and piping, these systems improve airflow, reduce intake resistance, and deliver cooler, denser air to the engine. The result is a sharper throttle response, enhanced torque, and a more engaging driving experience.
At Design911, we stock a premium range of performance air induction kits engineered for Porsche models across all generations — from classic 911s to modern Cayman, Boxster, and Taycan models. Manufactured from lightweight, heat-resistant materials with precision-fit components, our high-quality induction systems ensure optimal performance and a refined induction sound that complements your Porsche’s character.
Whether you’re aiming for track-ready performance or improved road dynamics, our air induction kits provide the perfect balance of power, reliability, and sound enhancement.
What Do Air Induction Kits Do?
Air induction kits optimise your Porsche’s intake system by increasing the volume and quality of air reaching the combustion chamber.
Core Functions:
- Increase
airflow efficiency to improve engine breathing and power output.
- Reduce
intake temperatures for denser air and better combustion.
- Enhance
throttle response for sharper, more immediate acceleration.
- Deliver
a sportier induction sound during acceleration.
- Improve fuel efficiency and overall engine performance.
When properly installed, an upgraded induction system can boost both performance and engine responsiveness, making it one of the best value-for-performance modifications available.
Why Do Induction Kits Fail or Require Replacement?
Like all high-performance components, air induction kits and filters are subject to environmental wear and heat exposure over time.
Common Causes of Failure Include:
- Clogged
or damaged filters reducing airflow and power.
- Cracked
intake pipes causing air leaks and inaccurate sensor readings.
- Heat
soak from poor insulation or worn heat shields.
- Contaminant
build-up on intake elements and sensors.
- Loose fittings or seals resulting in unmetered air entering the system.
Symptoms of a failing induction system include loss of performance, uneven idle, whistling noises, or increased fuel consumption — all indicators that maintenance or replacement is needed.
Why Upgrade or Replace with Performance Induction Components?
Replacing worn parts or upgrading to a high-performance induction system ensures consistent airflow, reduced restriction, and improved power delivery.
Key Benefits:
- Increases engine power and torque.
- Improves throttle response and drivability.
- Enhances induction sound and character.
- Constructed from lightweight, durable materials.
- Direct-fit
compatibility with Porsche 911, Cayman, Boxster, Macan, Panamera
and more.
- Ideal for performance tuning, track use, or spirited driving.
A precision-engineered induction kit maximises your Porsche’s performance potential while preserving reliability and long-term efficiency.
Highlights:
- Performance air induction kits engineered for Porsche models.
- Enhances airflow, power, and throttle response.
- Delivers a deep, refined induction sound.
- Built from heat-resistant carbon fibre, silicone, or aluminium.
- Easy installation with precision-fit design.
- Perfect for performance upgrades and maintenance replacements.