• Performance Air Filter for 911 G2 GT3 Turbo 996
  • Performance Air Filter for 911 G2 GT3 Turbo 996

Performance Air Filter for Porsche 911 (1999-2011) 3.6L 3.8L

$134.00
$134.00
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Maximize Induction Efficiency for the Porsche 911 Mezger Flat-Six - See Fitment before ordering

Who It’s For: Designed specifically for Porsche 911 (996 and 997) owners running the legendary Mezger Flat-Six and high-performance 3.8L GT3 engines. Whether you are hitting the apex at a track day or cruising the canyon, this is for the driver who demands better throttle response without sacrificing filtration.

The Problem: The Mezger Flat-Six is a masterpiece of engineering, but the factory-installed paper air filter is a major bottleneck. These stock filters are designed for long service intervals and cost-cutting, not peak volumetric efficiency. In high-heat environments or under heavy boost, the OEM paper can become a restriction, hindering the engine’s ability to breathe and ultimately robbing you of power and turbo spool-up time.

The Solution: We utilize BMC’s race-proven cotton gauze technology to correct the factory limitations of the Mezger Flat-Six. By switching to a multi-layered oiled cotton media, we increase air volume while improving filtration down to 7 microns. This ensures your intake stays clean while providing the low-pressure drop required for maximum performance.

Why This is the Ultimate Upgrade

  • Enhanced Airflow: High-permeability cotton gauze allows a significantly higher volume of air to reach the intake manifold compared to dense OEM paper.
  • Race-Grade Durability: Constructed using a "Full Moulding" system, creating a single-piece filter without welded joints to prevent cracking or failure under high-vibration track use.
  • Washable & Reusable: Unlike disposable filters, this unit is fully regenerable. Simply wash and re-oil to maintain peak performance for the life of the vehicle.

Technical Specifications

Fitment 2001-2011 Porsche 911 (Turbo, GT2, GT3)
Engine Family Mezger Flat-Six
Factory Ratings ~415 HP & 415 lb-ft Torque (996 Turbo Base)
Filter Material Multi-layered Cotton Gauze / Epoxy Coated Alloy Mesh

Compatibility & OEM Reference

Fits the Following Vehicles:

  • 1999 – 2001: Porsche 911 (996) 3.6 H6 GT3 (360 power)

  • 2000 – 2006: Porsche 911 (996) 3.6 H6 Turbo (420 power)

  • 2001 – 2003: Porsche 911 (996) 3.6 H6 GT2 (462 power)

  • 2002 – 2006: Porsche 911 (996) 3.6 H6 GT3 (381 power)

  • 2002 – 2006: Porsche 911 (996) 3.6 H6 GT3 RS (381 power)

  • 2002 – 2006: Porsche 911 (996) 3.6 H6 Turbo (X50 package) (450 power)

  • 2003 – 2006: Porsche 911 (996) 3.6 H6 GT2 (483 power)

  • 2004 – 2006: Porsche 911 (996) 3.6 H6 Turbo Cabriolet (420 power)

  • 2005 – 2006: Porsche 911 (996) 3.6 H6 Turbo S (450 power)

  • 2005 – 2006: Porsche 911 (996) 3.6 H6 Turbo S Cabriolet (450 power)

  • 2006 – 2009: Porsche 911 (997) 3.6 H6 GT3 (415 power)

  • 2006 – 2009: Porsche 911 (997) 3.6 H6 GT3 RS (415 power)

  • 2009 – 2011: Porsche 911 (997.2) 3.8 H6 GT3 (435 power)

Interchange Part Numbers:

911, G2, GT3, 996, 3.6L, 2002, 2003, 2004, 2005, 996t, 2007, 2008, 997, 3.8L, 2010, 2011, 2001

The Performance Promise

Buy with confidence. We’ve spent years tuning these platforms and know exactly what works. This filter is a mandatory upgrade for any 996 or 997 owner looking to optimize their intake tract. Backed by real automotive experts and fast shipping.

Fitment

Make

Porsche

Engine Size
  • 3.6L
  • 3.8L

Year
  • 1999
  • 2000
  • 2001
  • 2002
  • 2003
  • 2004
  • 2005
  • 2006
  • 2007
  • 2008
  • 2009
  • 2010
  • 2011

Installation & Tools

The Wrench Time

  • Estimated Time: 30-45 Minutes
  • Difficulty: 3/10 - Accessible rear decklid maintenance, but requires patience around fragile aging plastics and wire harnesses.

Tools You Will Need

  • 10mm socket and 1/4"-drive ratchet
  • T25 Torx driver (or T20, depending on specific model year airbox lid)
  • Flathead screwdriver or 7mm nut driver (for intake hose clamps)
  • Shop vacuum (for debris removal in the lower airbox)
  • Silicone spray or dry lubricant (for rubber mounting bobbins)
Mechanic’s Pro Tip (The "Gotcha"):
The 996 and 997 chassis flat-six engine bays operate at elevated ambient temperatures, making the factory plastic locking tabs on the Mass Airflow Sensor (MAF) harness and Secondary Air Injection (SAI) quick-disconnects extremely brittle. Never pull directly on the wiring. Furthermore, when dismounting the factory airbox, pull straight upward with controlled pressure. If you rock it violently side-to-side, you will snap the lower airbox alignment pegs clean off the rubber mounting grommets.

Phase 1: Removing the Factory Air Filter from your 1999-2011 Porsche 911 3.6L 3.8L

  1. Disconnect the Battery: Lift the front hood (frunk) and disconnect the negative battery terminal using a 10mm wrench. This clears residual learned trim values and prevents ECU fault codes while servicing the intake tract.
  2. Disconnect the MAF Sensor Harness: Open the rear engine decklid. Locate the Bosch MAF sensor on the intake elbow of your 1999-2011 Porsche 911 3.6L 3.8L. Gently press the release tab on the electrical connector and slide it off the sensor body. If stubborn, use a small flathead screwdriver to carefully relieve the locking barb without cracking the connector.
  3. Loosen the Throttle Body / Intake Tube Clamps: Using a flathead screwdriver or 7mm nut driver, loosen the worm gear clamp securing the rubber intake accordion boot to the airbox housing. Disconnect the Secondary Air Injection (SAI) hose from the airbox neck by depressing the ribbed plastic release ring.
  4. Free the Airbox Housing: Depending on whether your flat-six is an M96, M97, or DFI engine, locate the central securing hardware. Remove the single mounting bolt using a 10mm socket (or unclip the top retaining metal bale). Firmly grab both sides of the airbox and pull straight upward to release the bottom locating pins from the chassis rubber grommets. Pivot the assembly out of the tight engine bay and onto your workbench.
  5. Disassemble the Airbox Lid: With the housing on your bench, back out the perimeter retaining fasteners using a T25 Torx driver. Separate the upper lid from the lower housing and lift out the old, dirty OEM paper filter.

Phase 2: Installing the Performance Air Filter for Porsche 911 (1999-2011) 3.6L 3.8L

  1. Clean the Airbox Basin: Inspect the lower airbox chamber for road grit, pine needles, and rubber marbles. Clean the housing thoroughly using a shop vacuum and a damp lint-free microfiber towel before inserting the new filter to ensure zero particulate bypass.
  2. Seat the Performance Air Filter: Drop the new Performance Air Filter directly into the lower airbox channel. Verify the thick rubber perimeter bead seats perfectly uniform along the entire rim. A misaligned lip will pinch, creating an unmetered air leak that will trigger fuel-trim error codes (P0171/P0174) in the DME.
  3. Reassemble the Housing: Position the airbox lid over the new filter. Hand-thread the fasteners, then secure them in a criss-cross pattern using your T25 Torx driver until snug. Do not overtighten, as these screws bite directly into aged composite plastic.
  4. Reinstall the Airbox Assembly: Apply a dab of silicone spray to the rubber chassis grommets inside the engine bay. Lower the airbox assembly back into the engine compartment, aligning the bottom pins directly over the grommets. Push down firmly with both hands until you feel the pins pop fully into place. Reinstall the mounting bolt using your 10mm socket.
  5. Reattach Intake Boot and MAF Sensor: Reconnect the intake boot and tighten the clamp firmly using your 7mm nut driver. Reclip the SAI hose. Reconnect the MAF wiring harness until you hear an audible click. Reconnect the negative battery terminal using your 10mm wrench.
  6. ECU / DME Idle Adaptation: Turn the ignition key to Position 2 (dash lights ON, engine OFF) and let it sit undisturbed for 60 seconds to allow the electronic throttle body to run its end-stop adaptation. Start the engine and do not touch the throttle pedal for at least 20 seconds while the DME recalculates baseline mass airflow signals with the new high-flow filter.

Disclaimer: This is a general guide provided for the 1999-2011 Porsche 911 3.6L 3.8L. 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 (1999-2011) 3.6L 3.8L

$134.00