• Performance Air Filter Cylindrical for 911 1965-1973
  • Performance Air Filter Cylindrical for 911 1965-1973
  • Performance Air Filter Cylindrical for 911 1965-1973 Default Title

Performance Air Filter for Porsche 911 (1965-1973) 2.0L 2.2L 2.4L 2.7L

$69.00
$69.00
Free Shipping within USA.
  • Guaranteed Fitment
  • Performance Tested
  • Lifetime Warranty

Want it soon? Order within

I18n Error: Missing interpolation value "end_date" for "Ends on {{ end_date }}"

Superior Airflow for Porsche 911 Flat-Six and Mercedes-Benz Heritage Engines

Who It’s For: Designed specifically for the classic Porsche 911 and vintage Mercedes-Benz owners running the Porsche Flat-Six and Mercedes M110/M130 engine families. This is for the driver who values period-correct aesthetics but demands modern induction efficiency.

The Problem: Factory paper filters in these vintage airboxes are restrictive by design. The Porsche Flat-Six and the high-revving Mercedes Inline-6 engines rely on high-velocity air for optimal combustion. Stock paper elements are prone to clogging, degrade quickly with moisture, and typically only filter down to 10 microns, leaving your carburetors or mechanical fuel injection systems vulnerable to fine debris.

The Solution: We utilize BMC’s legendary cotton gauze technology to correct these legacy limitations. By using multi-layered cotton soaked in low-viscosity oil, this filter captures impurities as small as 7 microns while significantly increasing the volume of air reaching the intake. This results in sharper throttle response and a more pronounced induction note without sacrificing the protection of your vintage Flat-Six.

Why This is the Ultimate Upgrade

  • Enhanced Induction Efficiency: Flows significantly more CFM than standard paper, allowing your engine to breathe better at the top of the RPM range where these classic engines make their power.
  • Full Moulding Construction: Built using a proprietary "Full Moulding" system. Unlike cheap filters with glued or welded joints, this single-mould design prevents structural failure and air bypass.
  • Lifetime Durability: The epoxy-coated alloy mesh protects against fuel fumes and oxidation. This is a "buy it once" part—simply wash and re-oil with a regeneration kit instead of throwing away paper filters.

Technical Specifications

Fitment 1965-1973 Porsche 911 & 1958-1981 Mercedes-Benz
Engine Family Porsche Flat-Six / Mercedes M110 & M130
Factory Ratings 80 HP to 250 HP
Filtration Rating 7 Microns

Compatibility & OEM Reference

Fits the Following Vehicles:

  • Mercedes-Benz /8 (W114/115) 240 D 3.0, 250 CE, 280 CE (1969-1976)
  • Mercedes-Benz S-Class (W116) 280 SE, SEL (1972-1980)
  • Mercedes-Benz SL (R107) 280 SL (1974-1981)
  • Mercedes-Benz SL (W113) 230 SL, 250 SL, 280 SL/8 (1963-1971)
  • Mercedes-Benz SLC (C107) 280 SLC (1974-1981)
  • Mercedes-Benz W100 Pullman 600 (1964-1979)
  • Mercedes-Benz W108 / W109 250 SE, 280 SE, SEL/8, 300 SEL/8, 6.3 (1966-1972)
  • Mercedes-Benz W110 / W112 Limousine 220 SEB, 300 SE (1959-1965)
  • Mercedes-Benz W111 Coupe / Cabrio 220 SEB, 250 SE, 280 SE (1961-1971)
  • Mercedes-Benz W120, W121, W128, W180 (Ponton) 220 SE (1958-1960)
  • Opel Admiral A 2.6 V6, 2.8 V6, 2.8 V6 HL (1964-1969)
  • Porsche 911 2.0 H6 (Coupe, Targa, E, L, S, T) (1965-1969)
  • Porsche 911 2.2 H6 (Coupe, Targa, E, S, T) (1970-1971)
  • Porsche 911 2.4 H6 (Coupe, Targa, E, S, T) (1972-1973)
  • Porsche 911 2.7 H6 Carrera RS / Touring (1973)

Engine Codes & Interchange Reference:

OM617.910, M114.980, M110.981, M110.985, M110.990, M127, M129, M130.983, M100.980, M100.982, M130.980, M100.981, M189, M130, M127.980, 26S, 28S, 28HL, W115, W114, W116, R107, W113, C107, W100, W108, W109, W110, W111, W112, W128

The Performance Promise

Buy with confidence. As specialists in European performance heritage, we ensure every filter meets the strict tolerances required for vintage Porsche and Mercedes airboxes. Backed by expert support and fast shipping.

Fitment

Make

Porsche

Engine Size
  • 2.0L
  • 2.2L
  • 2.4L
  • 2.7L

Year
  • 1965
  • 1966
  • 1967
  • 1968
  • 1969
  • 1970
  • 1971
  • 1972
  • 1973

Installation & Tools

The Wrench Time

  • Estimated Time: 30-45 Minutes
  • Difficulty: 2/10 - Accessible vintage DIY, but requires extreme caution to avoid dropping foreign objects into open intake horns.

Tools You Will Need

  • 10mm combination wrench (battery disconnect and housing mounts)
  • Flathead screwdriver or 7mm nut driver (vintage hose clamps)
  • Clean shop rags or intake plugs (mandatory to seal throttle bores)
  • Needle-nose pliers (for factory retaining spring bails and clips)
  • Telescoping retrieval magnet (crucial vintage engine bay safeguard)
Mechanic’s Pro Tip (The "Gotcha"):
Dropping hardware down the open throats of your Weber, Zenith, or Bosch Mechanical Fuel Injection (MFI) velocity stacks is the cardinal sin on a 1965-1973 Porsche 911 longhood. The moment the factory cylindrical air housing lid comes off, immediately cover the intake runners with clean shop rags. Furthermore, the oil tank breather hose running to the back of the housing is likely rock-hard from decades of heat cycling; do not yank it, or you will snap the vintage metal spigot or split the unobtanium rubber elbow.

Phase 1: Removing the Factory Part

  1. Disconnect the Battery: Always start by opening the front trunk (frunk) and disconnecting the ground terminal on the battery using a 10mm wrench to prevent accidental electrical shorts while working near the starter and engine wiring harness.
  2. Clear Surrounding Engine Bay Linkages: Carefully inspect the engine bay of your 1965-1973 Porsche 911. Disconnect the oil tank crankcase breather hose from the rear snout of the cylindrical air assembly using a flathead screwdriver to loosen the vintage Norma clamp. Gently twist the hose to break the seal rather than prying directly against the metal housing.
  3. Release Housing Retaining Hardware: Depending on whether your longhood runs the early Knecht-style round canister or later central barrel assembly, release the perimeter wire spring clips using needle-nose pliers, or back off the central knurled wing nuts and retaining fasteners using a 10mm combination wrench. Set the washers and wing nuts directly into a magnetic parts tray immediately.
  4. Lift the Housing Lid and Seal Throttle Throats: Carefully lift off the top cover of the factory cylindrical air cleaner. Before pulling out the old filter element, immediately place clean, lint-free shop rags over all exposed intake trumpets and carburetor throats to ensure zero grit, crumbling gasket material, or loose washers fall into the cylinders.
  5. Extract the Old Filter: Slide the aged cylindrical paper or mesh element off its inner metal cage. Vacuum out any loose debris, dried pine needles, or dirt accumulated inside the bottom half of the factory air box base using a shop vacuum.

Phase 2: Installing the Performance Air Filter Cylindrical

  1. Clean and Inspect the Seating Flanges: Wipe down the internal mating surfaces and perforated support cage with a clean microfiber towel. Inspect the delicate throttle return springs and cross-bar linkage rods on your carbs or MFI stacks to verify full clearance and zero binding.
  2. Seat the New Performance Element: Carefully slide the new cylindrical performance air filter over the central mounting cage. Confirm that both the top and bottom rubber or polyurethane sealing beads sit completely flat and centered against the air cleaner canister base; an unseated bead will draw unfiltered hot air past the velocity stacks.
  3. Remove Temporary Plugs and Reinstall Housing Lid: Pull out the protective shop rags from the intake bores. Double-check that no stray hardware or tools remain inside the housing perimeter. Carefully align the top lid of the cylindrical canister onto the filter sealing lip, making sure the vintage internal alignment locating notches engage correctly.
  4. Secure Housing Fasteners: Re-engage the factory wire bails using needle-nose pliers, or thread the retaining nuts finger-tight before snugging them down with a 10mm wrench. Do not over-torque, as over-tightening will distort the vintage stamped sheet metal canister or crush the new filter skeleton. Reattach the oil breather hose to the housing neck and secure the clamp using a flathead screwdriver.
  5. Reconnect Battery and First Startup: Reconnect the ground terminal on your battery using a 10mm wrench. Turn the ignition key to prime the fuel pumps. On the first startup, the vehicle gas pedal should not be touched for 20 seconds until the ECU adjusts and the idle circuit stabilizes smoothly across all six cylinders.

Disclaimer: This is a general guide provided for the 1965-1973 Porsche 911. Always refer to your factory service manual for exact torque specifications and safety procedures.

Warranty

All products are backed by our Limited Lifetime Warranty. We stand by our quality. [See terms]
Performance Air Filter for Porsche 911 (1965-1973) 2.0L 2.2L 2.4L 2.7L

$69.00