K&N 33-2031-2 High-Flow Air Filter for Nissan/Infiniti Pathfinder 350Z G35

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Product Specification:

SKU:KNN33-2031-2

MPN: 33-2031-2

UPC: 024844071873

Weight: 1.1 lb

Inventory: 16

Type: Air Filters - Drop In

Vehicle Fitment

1990-2004, 2013-2020 Nissan Pathfinder (All Trims, V6 3.5L)
1999-2004 Nissan Frontier (All Trims, V6 3.3L)
2000-2004 Nissan Xterra (All Trims, V6 3.3L)
2003-2006 Nissan 350Z / Z33 (All Trims, VQ35DE 3.5L V6)
2003-2024 Nissan Murano (All Trims, V6 3.5L)
1993-2018 Nissan Altima (All Trims, L4 / V6)
1982-1984, 1988-2023 Nissan Maxima (All Trims, V6)
1991-2006 Nissan Sentra (All Trims, L4)
1987-1989 Nissan 300ZX / Z31 (All Trims, VG30E / VG30ET)
1988-1998 Nissan 240SX / S13 / S14 (All Trims, KA24E / KA24DE)
1988-2001 Nissan 200SX (All Trims)
1990-1996 Nissan Pickup / Hardbody (All Trims)
2001-2007 Nissan X-Trail (All Trims)
1989-2002 Nissan Skyline R32 / R33 / R34 (All Trims, RB/SR/CA engines, incl. GT-R)
1989-2002 Nissan Silvia S13 / S14 / S15 (All Trims, CA18 / SR20)
1989-1998 Nissan 180SX / S13 (All Trims, CA18DET / SR20DE / SR20DET)
1987-2006 Nissan Fairlady Z / Z31 / Z33 (All Trims, VG / RB / VQ35DE)
2004-2017 Nissan Quest (All Trims, V6 3.5L)
2003-2008 Infiniti FX35 (All Trims, V6 3.5L)
2003-2007 Infiniti G35 / V35 (Coupe & Sedan, VQ35DE 3.5L V6)
2014-2021 Infiniti QX60 (All Trims, V6 3.5L)
2013 Infiniti JX35 (All Trims, V6 3.5L)
1997-2003 Infiniti QX4 (All Trims)
2001 Infiniti Q45 (All Trims)
2002-2004 Infiniti I35 (All Trims)
1996-2001 Infiniti I30 (All Trims)
1991-1996, 1999-2002 Infiniti G20 (All Trims)
1993-1997 Infiniti J30 (All Trims)
1990-1992 Infiniti M30 (All Trims)
1996, 1998, 2002-2003 Subaru Impreza (Select Trims - confirm via VIN)
1993-1998 Ford Maverick (All Trims - European Market)

Fitment Notes

Nissan Skyline GT-R fitment (R32 / R33 / R34) confirmed for RB26DETT and RB25DET variants
Subaru Impreza fitment applies to select model years only - verify via VIN before ordering
Ford Maverick fitment is for European-market models only; does not apply to the US-market Ford Maverick
Nissan Pathfinder fitment covers two distinct generation ranges: 1990-2004 and 2013-2020; does not fit 2005-2012 R51 generation
Infiniti G35 fitment covers both Coupe (2003-2007) and Sedan (2003-2006) variants

Features

Drop-in replacement - installs directly into the factory airbox with no modifications
4-layer oiled cotton gauze media maximizes airflow while capturing harmful contaminants
Engineered to increase horsepower and acceleration over stock paper filters
Pre-oiled and ready to install straight out of the box
Washable and reusable - service interval every 75,000 miles under normal driving conditions
Up to 99% filtration efficiency for full engine protection
Compatible with OEM airbox and MAF sensors - no recalibration required
Backed by K&N's No-Hassle Lifetime Limited Warranty

Specifications

Part Number: 33-2031-2
Filter Style: Panel Air Filter
Filter Media: Oiled Cotton Gauze
Outside Length: 11.0 in (279 mm)
Outside Width: 6.563 in (167 mm)
Height: 1.25 in (32 mm)
Compatible Engine Sizes: 1.8L L4, 2.0L L4, 2.4L L4, 3.3L V6, 3.5L V6, and select RB/SR/CA inline-6 engines
Washable: Yes
Warranty: No-Hassle Lifetime Limited

Included Components

1x K&N 33-2031-2 High-Flow Panel Air Filter

Product Description

The K&N 33-2031-2 is a washable, reusable drop-in replacement air filter covering one of the broadest fitment ranges in the K&N lineup - spanning decades of Nissan and Infiniti vehicles including the Pathfinder, 350Z, Skyline (R32-R34 including GT-R), Silvia, Maxima, Altima, Murano, G35, QX60, and more. Its 4-layer oiled cotton gauze construction allows significantly more airflow than a stock paper filter while maintaining up to 99% filtration efficiency. The panel design drops directly into the factory airbox with no modifications needed, and works seamlessly with OEM MAF sensors.

Unlike disposable filters that need frequent replacement, the K&N 33-2031-2 only requires cleaning every 75,000 miles, making it a practical long-term performance upgrade for both daily drivers and enthusiast builds alike. With coverage spanning JDM sport models like the Skyline GT-R and Silvia alongside mainstream platforms like the Pathfinder and Murano, this filter is one of the most versatile drop-in upgrades available for Nissan and Infiniti owners.