{"product_id":"honda-civic-engine-air-filter-kn-33-2025","title":"Honda Civic Engine Air Filter K\u0026N (88-91)","description":"\u003cul\u003e\n\u003cli\u003eEngine air filter for 1988-1991 Civic \u003c\/li\u003e\n\u003cli\u003eAlso fits 1988-1991 CRX DX, HF, and Si \u003c\/li\u003e\n\u003cli\u003eReplaces Honda 17220-PM7-000 \u003c\/li\u003e\n\u003cli\u003eOiled cotton panel. Clean every 75,000 miles, per K\u0026amp;N \u003c\/li\u003e\n\u003cli\u003eNot the 1992-1995 Civic (K\u0026amp;N 33-2047) \u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c!-- split --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli\u003e\u003ca class=\"active\" href=\"#Description\"\u003eDescription\u003c\/a\u003e\u003c\/li\u003e\n \u003cli\u003e\u003ca href=\"#VehicleFitment\"\u003eVehicle Fitment\u003c\/a\u003e\u003c\/li\u003e \u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\n\n\u003cli class=\"active\" id=\"Description\"\u003e\n\u003ch3\u003eHonda Civic Engine Air Filter K\u0026amp;N (88-91)\u003c\/h3\u003e\n\u003cp\u003eYour 1988-1991 Civic uses a paper engine air filter in the factory airbox. When that filter is dirty, K\u0026amp;N 33-2025 is the washable Honda Civic engine air filter that drops in the same box on the hatch, sedan, and wagon.\u003c\/p\u003e\n\u003cp\u003eRead the year on the door jamb, because 1992 is a new Civic and a new panel. This same filter also fits the 1988-1991 CRX DX, HF, and Si. Those cars share this airbox with the Civic.\u003c\/p\u003e\n\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/nuxwgCvcc_8\" title=\"YouTube video player\" style=\"width:100%;aspect-ratio:16\/9;height:auto;border:0;display:block;\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen=\"\"\u003e\u003c\/iframe\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eWhat It Is and Why It Works\u003c\/h3\u003e\n\u003cp\u003eThe trade here is paper against oiled cotton, and it is worth being honest about both sides. Honda paper filters fine, and you bin it every service. This is four layers of oiled cotton gauze that you wash and keep for as long as you own the car. K\u0026amp;N rates the media at up to 99 percent overall efficiency and says it only needs cleaning every 75,000 miles under normal highway driving, both per manufacturer. It ships pre-oiled, so it goes straight in the box out of the bag.\u003c\/p\u003e\n\u003cp\u003eWhat you give up is the oil-free part, and that matters if a hot-wire sensor sits in the intake. Over-oil a cotton filter and you can put oil film on that sensor, and then you are chasing a driveability problem that the filter caused. Use the right amount, which K\u0026amp;N puts at 0.66 oz for this panel, and keep the oil off the gasket face. If you would rather not think about oil at all, buy a dry filter instead and stop reading here. If you will clean it properly, this is the correct 1988-1991 panel and it is the last one you buy for the car.\u003c\/p\u003e\n\u003cp\u003eSet your expectations on power honestly. A panel filter sitting in a stock airbox does not make horsepower you can feel. The restriction on a D15 or D16A6 is the box, the snorkel and the head, not the element inside it. Buy this because you are tired of replacing paper, not because you expect a dyno result. K\u0026amp;N backs stock-replacement High-Flow filters with a No-Hassle Lifetime Limited warranty, limitations apply.\u003c\/p\u003e\n\u003ch3\u003eSpecs\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e33-2025\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHybrid Racing SKU\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eKNN-33-2025\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLine\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eK\u0026amp;N High-Flow panel engine air filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePosition\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFactory engine airbox, one filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHonda OE cross\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e17220-PM7-000 (K\u0026amp;N lists 17220PM7000). Honda now ships that element as 17220-PM7-305.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOther crosses\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWIX 46158, Fram CA6333, Purolator A34487, per K\u0026amp;N\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePanel size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e8.625 in x 7.25 in x 0.875 in (219 x 184 x 22 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCotton gauze, oiled, 4 layers, per manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFiltration efficiency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUp to 99 percent, per manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRe-oil amount\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.66 oz (19 ml), per K\u0026amp;N\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eService interval\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eClean every 75,000 miles under normal highway driving, per K\u0026amp;N\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eContents\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 engine air filter, pre-oiled. No intake kit, no cleaner, no oil bottle, no cabin filter.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNo-Hassle Lifetime Limited, per K\u0026amp;N. Limitations apply.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eYear\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eMake\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eTrim\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1988-1991\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCivic\u003c\/td\u003e\n\u003ctd\u003eDX hatch, sedan, and wagon\u003c\/td\u003e\n\u003ctd\u003eD15 1.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1988-1991\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCivic\u003c\/td\u003e\n\u003ctd\u003eLX sedan\u003c\/td\u003e\n\u003ctd\u003eD15 1.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1988-1991\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCivic\u003c\/td\u003e\n\u003ctd\u003eSTD hatch\u003c\/td\u003e\n\u003ctd\u003eD15 1.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1988-1991\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCivic\u003c\/td\u003e\n\u003ctd\u003eSi hatch\u003c\/td\u003e\n\u003ctd\u003eD16A6 1.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1990-1991\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCivic\u003c\/td\u003e\n\u003ctd\u003eEX sedan\u003c\/td\u003e\n\u003ctd\u003eD16A6 1.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1988-1991\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCivic\u003c\/td\u003e\n\u003ctd\u003e4WD wagon\u003c\/td\u003e\n\u003ctd\u003eD16A6 1.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1988-1989\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCivic\u003c\/td\u003e\n\u003ctd\u003eWagovan\u003c\/td\u003e\n\u003ctd\u003eD15 1.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1988-1991\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCRX\u003c\/td\u003e\n\u003ctd\u003eDX, HF\u003c\/td\u003e\n\u003ctd\u003eD15 1.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e1988-1991\u003c\/td\u003e\n\u003ctd\u003eHonda\u003c\/td\u003e\n\u003ctd\u003eCRX\u003c\/td\u003e\n\u003ctd\u003eSi\u003c\/td\u003e\n\u003ctd\u003eD16A6 1.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eFactory engine airbox only, and it is not a cabin filter. These cars never had a glovebox cabin filter. Hatch, sedan, wagon, and CRX share this panel on both the 1.5 and the 1.6. A 1992 Civic is the next generation. That car takes K\u0026amp;N 33-2047 and Honda 17220-P07-000. If you are not sure what you are holding, measure the paper: 8.625 by 7.25 by 0.875 inches is this one. 8.375 by 7.438 by 0.75 inches is the 1992-1995 panel. This filter does not fit a 1987 Civic. Official K\u0026amp;N 1987 Civic 1.5 pages do not list 33-2025.\u003c\/p\u003e\n\u003ch3\u003eWhat to Know Before You Buy\u003c\/h3\u003e\n\u003cp\u003eBuy the right chemicals with it. This filter is oiled, so when it comes time to clean it you need K\u0026amp;N cleaner and K\u0026amp;N oil, and their 99-5000 service kit has both in one box. Dry-filter cleaner is the wrong bottle for this media, so if you have an AEM DryFlow spray on the shelf from another car, leave it there. Wash it, let it dry all the way, oil it with 0.66 oz, done. The most common way people ruin one of these is soaking it and putting it back in wet, or dumping a whole bottle on an 0.875 in panel.\u003c\/p\u003e\n\u003cp\u003eConfirm the year before you order, not just the Civic badge. If the car is 1992-1995, this is the wrong SKU. That generation takes K\u0026amp;N 33-2047. If the car is 1984-1987, this is also the wrong SKU. And if the car already has a K\u0026amp;N intake kit on it, that kit came with its own conical filter and this panel does nothing for you. 33-2025 stays in the factory airbox.\u003c\/p\u003e\n\u003cp\u003eWhile the airbox lid is off, spend two minutes on the rest of it. Check that the lid gasket is seated flat and the clips all latch evenly, because a warped lid on a Civic this age leaks more air past the filter than any element flows through it. Look at the breather hose that dumps into this box too. A soaked elbow puts oil mist upstream of a brand new filter, and then people blame the filter. Snug the intake tube clamp on the way back together. That is the whole job.\u003c\/p\u003e\n\u003c\/li\u003e\n\n \n\u003cli id=\"VehicleFitment\"\u003e\n \u003cp\u003e1988-1991 Civic hatch, sedan, and wagon, plus 1988-1991 CRX DX, HF, and Si. A 1992 Civic is the next generation and takes K\u0026amp;N 33-2047. Pull the paper and measure it: 8.625 x 7.25 x 0.875 in is this panel. 8.375 x 7.438 x 0.75 in is the 1992-1995 panel.\u003c\/p\u003e \n\u003c\/li\u003e\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\u003c\/ul\u003e\n","brand":"K\u0026N","offers":[{"title":"Default Title","offer_id":46432153141282,"sku":"KNN-33-2025","price":46.39,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2218\/5701\/files\/KNN-33-2025_0euc.jpg?v=1787002854","url":"https:\/\/www.hybrid-racing.com\/products\/honda-civic-engine-air-filter-kn-33-2025","provider":"Hybrid Racing","version":"1.0","type":"link"}