--- product_id: 1891533 title: "High-Flow Original Lifetime Engine Air Filter: Increase Power: Premium, Washable: Compatible with 1981-2021 Faw/Ford/Infiniti/Nissan: (See product Description for Select Models) 33-2031-2" brand: "k&n" price: "920 kr" currency: DKK in_stock: true reviews_count: 13 category: "K&N" url: https://www.desertcart.dk/products/1891533-high-flow-original-lifetime-engine-air-filter-increase-power-premium store_origin: DK region: Denmark --- # 50% airflow boost washable & reusable lifetime durability High-Flow Original Lifetime Engine Air Filter: Increase Power: Premium, Washable: Compatible with 1981-2021 Faw/Ford/Infiniti/Nissan: (See product Description for Select Models) 33-2031-2 **Brand:** k&n **Price:** 920 kr **Availability:** ✅ In Stock ## Summary > ⚡ Drive smarter, breathe cleaner, last longer. ## Quick Answers - **What is this?** High-Flow Original Lifetime Engine Air Filter: Increase Power: Premium, Washable: Compatible with 1981-2021 Faw/Ford/Infiniti/Nissan: (See product Description for Select Models) 33-2031-2 by k&n - **How much does it cost?** 920 kr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/1891533-high-flow-original-lifetime-engine-air-filter-increase-power-premium) ## Best For - k&n enthusiasts ## Why This Product - Trusted k&n brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Upgrade:** Pre-treated and ready to install in minutes—transform your factory air box with zero hassle. - • **Proven Reliability:** Tested on the world’s toughest race tracks and trusted by millions for consistent, long-term engine protection. - • **Eco-Smart Filtration:** Washable and reusable design slashes waste, replacing 10+ disposable filters—drive green, save green. - • **Lifetime Performance:** Built tough with premium materials and backed by a no-hassle limited lifetime warranty—upgrade once, drive forever. - • **Unleash Engine Power:** Boost horsepower & throttle response with 50% more airflow for that edge on every drive. ## Overview The K&N High-Flow Original Lifetime Engine Air Filter delivers up to 50% increased airflow to enhance horsepower and throttle response. Engineered with four layers of premium cotton gauze, it traps harmful contaminants while lasting the lifetime of your vehicle. Washable and reusable, it reduces waste and replacement costs, backed by a limited lifetime warranty. Compatible with select 1981-2021 Faw, Ford, Infiniti, and Nissan models, this easy-to-install filter is a proven upgrade trusted by millions for superior engine performance and longevity. ## Description K&N performance High-Flow Air Filters are engineered to improve engine performance by increasing airflow up to 50%. Unlike disposable paper filters which must be frequently replaced, K&N Air Filters are washable, reusable, and engineered to last for the life of your vehicle. K&N air filters are backed by our famous 10-Year/Million Mile Limited Warranty, and they provide an environmentally friendly way to reduce landfill waste by avoiding disposable filters. Engineered to fit easily into your factory air box, installation can be completed in a matter of minutes! K&N develops and tests each product on the world’s toughest race tracks, so we can bring the highest level of performance to your daily driving. Join the millions of customers who have saved money and improved vehicle performance by upgrading to K&N filtration.Compatible Vehicles:2000-2000 FAW Century Star1989-1992 FORD Corsair1993-1998 FORD Maverick1986-2002 HOLDEN Calais1990-1999 HOLDEN Caprice1986-2000 HOLDEN Commodore1990-1999 HOLDEN Statesman2003-2008 INFINITI FX351991-2002 INFINITI G202003-2007 INFINITI G351996-2001 INFINITI i302002-2004 INFINITI I351993-1997 INFINITI J302013-2013 INFINITI JX351990-1992 INFINITI M302001-2001 INFINITI Q451997-2003 INFINITI QX42014-2021 INFINITI QX601990-1993 ISUZU Aska1985-1985 ISUZU Gemini1981-1981 NISSAN 8101988-1998 NISSAN 180SX1988-2003 NISSAN 200SX1988-1998 NISSAN 240SX1987-1990 NISSAN 300ZX2003-2006 NISSAN 350Z1982-2006 NISSAN AD2002-2002 NISSAN Almera1995-2000 NISSAN Almera I2000-2007 NISSAN Almera II2000-2006 NISSAN Almera Tino1993-2018 NISSAN Altima Review: Got an additional 1 MPG and better throttle response in my 2013 Altima 3.5S - A perfect drop-in fit for my 2013 Nissan Altima 3.5S with factory air box and intake. Throttle response was noticeably improved over clean/new factory paper filter, ESPECIALLY at lower RPM (which this engine w/ the CVT tends to prefer). You'll notice throttle response increase much more than an overall power increase. MPG climbed right around 1 full mile per gallon (hovering between .9 and 1.1 additional from my calculations at the gas pump and the in-dash display). Intake growl increased a little when really getting into the throttle, but is same as stock when you're not driving aggressively. If you have a CVT (Altima, Maxima, Murano, Pathfinder, etc.), then this seems to make sense due to the improvement in throttle response (how power applied to the wheels tracks with pedal movement). If you're in a truck with the std 6-speed auto, then it may not make much of a difference other than tripling your filter change interval. Going from 27mpg to 28 mpg will pay for the filter alone (I already have a recharge kit from K&N, also found here on desertcart). Don't expect miracles, but it's a quality product that delivers reasonable return on investment. If you drive like a fool, don't expect your MPG to go up. But you will enjoy the slight noise improvement and the throttle response. Review: Quality - You get what you pay for with K&N products. Have purchased several K&N air filters before and keep coming back to them. Quality and long lasting. ## Features - ENGINEERED POWER: State-of-the-art air filter media is designed to increase horsepower and acceleration as well as improve overall engine performance - RUGGED CONSTRUCTION: K&N Air Filters are manufactured with durable, premium materials and state-of-the-art construction methods to last a lifetime - 4 LAYERS OF PROTECTION: Multiple layers of premium cotton gauze treated with a specially-designed tacking agent work together to create an intricate mesh of engine filter media that is designed to block and trap harmful contaminants - CLEAN ONCE EVERY 5 YEARS: Engine air filter only needs cleaning every 75,000 miles under normal highway driving conditions (based on the average miles driven per year of 15,000 miles) - ULTIMATE LONGEVITY: No-hassle limited lifetime warranty on stock replacement K&N air filters- limitations apply - EASY INSTALLATION: K&N Air Filters are pre-treated and ready to drop into your factory air box- they are one of the easiest and most cost-effective vehicle upgrades for quick performance gains - ECO-FRIENDLY: Using a washable, reusable engine air filter helps reduce replacement air filter waste- a K&N air filter is designed to last longer than 10 or more disposable filters - MADE IN USA: K&N Air Filters are proudly made in the USA for trusted quality & reliability ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000182DPG | | Automotive Fit Type | Vehicle Specific Fit | | Best Sellers Rank | #68,923 in Automotive ( See Top 100 in Automotive ) #1,136 in Automotive Replacement Air Filters | | Brand Name | K&N | | Customer Reviews | 4.7 4.7 out of 5 stars (1,380) | | Fit Type | Vehicle Specific Fit | | Global Trade Identification Number | 00024844071873 | | Included Components | K&N 33-2031-2 Replacement Air Filter. Compatible with Nissan Pathfinder V6-3.5L F/I, 2000-2018 | | Item Dimensions L x W x H | 13.5"L x 7.75"W x 1.75"H | | Item Type Name | K&N 33-2031-2 Replacement Air Filter. Compatible with: Nissan Pathfinder V6-3.5L F/I, 2000-2018 | | Item Weight | 0.3 Kilograms | | Manufacturer | K&N Engineering | | Manufacturer Part Number | 33-2031-2 | | Manufacturer Warranty Description | 1,000,000 Miles/10 Year | | Model Number | 33-2031-2 | | OEM Equivalent Part Number | 16546AA020, 1N0013Z40, 894132687, 894516143, 92041796 | | Product Grade | Replacement Part | | Shape | Panel | | UPC | 024844071873 | | Unit Count | 1 Count | ## Product Details - **Brand:** K&N - **Fit Type:** Vehicle Specific Fit - **OEM Part Number:** 16546AA020, 1N0013Z40, 894132687, 894516143, 92041796 - **Product Dimensions:** 13.5"L x 7.75"W x 1.75"H - **Product Grade:** Replacement Part ## Images ![High-Flow Original Lifetime Engine Air Filter: Increase Power: Premium, Washable: Compatible with 1981-2021 Faw/Ford/Infiniti/Nissan: (See product Description for Select Models) 33-2031-2 - Image 1](https://m.media-amazon.com/images/I/81uDi6yXInL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: Can this filter fits ford explorer 2004** A: This filter was built for nissan maxima 2001. You should go on the website and see which one fits the specific vehicle you are looking for. **Q: Does it fit 2000 Nissan Xterra?** A: Fits 2003 Xterra with super charger **Q: Does this fit a 2020 nissan frontier? I am having no luck finding anything for the 2020 version.** A: Don’t know if you found it or not but it’s the same air filter size as the old 4.0l engine so a 2019 frontier air filter k&n will fit on the 2020-2022. I know cuz I had a 2020 and now have the 2022 frontier and that’s the filter I’m using. Hope that helps anyone. **Q: Will it fit a 2018 Infiniti QX60?** A: If it's a 3,5 liter, the air box should accommodate it. We have a 2014 QX60 and it worked. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Got an additional 1 MPG and better throttle response in my 2013 Altima 3.5S *by T***Y on September 17, 2015* A perfect drop-in fit for my 2013 Nissan Altima 3.5S with factory air box and intake. Throttle response was noticeably improved over clean/new factory paper filter, ESPECIALLY at lower RPM (which this engine w/ the CVT tends to prefer). You'll notice throttle response increase much more than an overall power increase. MPG climbed right around 1 full mile per gallon (hovering between .9 and 1.1 additional from my calculations at the gas pump and the in-dash display). Intake growl increased a little when really getting into the throttle, but is same as stock when you're not driving aggressively. If you have a CVT (Altima, Maxima, Murano, Pathfinder, etc.), then this seems to make sense due to the improvement in throttle response (how power applied to the wheels tracks with pedal movement). If you're in a truck with the std 6-speed auto, then it may not make much of a difference other than tripling your filter change interval. Going from 27mpg to 28 mpg will pay for the filter alone (I already have a recharge kit from K&N, also found here on Amazon). Don't expect miracles, but it's a quality product that delivers reasonable return on investment. If you drive like a fool, don't expect your MPG to go up. But you will enjoy the slight noise improvement and the throttle response. ### ⭐⭐⭐⭐⭐ Quality *by L***S on April 15, 2025* You get what you pay for with K&N products. Have purchased several K&N air filters before and keep coming back to them. Quality and long lasting. ### ⭐⭐⭐⭐⭐ I went from a hoopty, to a whahoopty! *by A***M on March 14, 2025* My '01 Frontier is now a high performance machine! Ok, not really. There is definitely a noticeable difference since I installed this filter though. My gas mileage and power have improved. ## Frequently Bought Together - K&N High-Flow Original Lifetime Engine Air Filter: Increase Power: Premium, Washable: Compatible with 1981-2021 Faw/Ford/Infiniti/Nissan: (See product Description for Select Models) 33-2031-2 - K&N Air Filter Cleaning Kit: Aerosol Filter Cleaner and Oil Kit; Restores Engine Air Filter Performance; Service Kit-99-5000, Multi --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.dk/products/1891533-high-flow-original-lifetime-engine-air-filter-increase-power-premium](https://www.desertcart.dk/products/1891533-high-flow-original-lifetime-engine-air-filter-increase-power-premium) --- *Product available on Desertcart Denmark* *Store origin: DK* *Last updated: 2026-05-09*