{"product_id":"k-n-replacement-air-filter-porsche-911-930-3-0-3-5l-turbo","title":"K\u0026N 33-2530 High-Flow Washable Panel Air Filter - Vintage BMW \u0026 Porsche Fit","description":"\u003ch4\u003eVehicle \/ Engine Fitment\u003c\/h4\u003e\u003cul\u003e \u003cli\u003eBMW 3-Series (E21) 320\/320i\/323i - model years 1977-1982\u003c\/li\u003e \u003cli\u003eBMW 5-Series (E12) 520i - model years 1972-1977 (some listings extend to 1977)\u003c\/li\u003e \u003cli\u003eBMW 2500 \/ 3.0 \/ 3.3 (E3) sedans - model years 1971-1977\u003c\/li\u003e \u003cli\u003ePorsche 911 (various generations) - model years 1977-1993\u003c\/li\u003e \u003cli\u003ePorsche 930 (911 Turbo \u0026amp; related) - 1976-1989 (varies by region\/model) including many 3.0L-3.3L engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFeatures\u003c\/h4\u003e\u003cul\u003e \u003cli\u003eHigh-flow oiled cotton-gauze media for improved airflow vs standard paper filters\u003c\/li\u003e \u003cli\u003eWashable \u0026amp; reusable design - clean, re-oil and reuse instead of frequent replacements\u003c\/li\u003e \u003cli\u003eDrop-in replacement - installs directly into stock air box when correct for vehicle\u003c\/li\u003e \u003cli\u003eMulti-layer filtration - balances airflow and particulate filtration, protecting engine while increasing breathing\u003c\/li\u003e \u003cli\u003ePre-oiled and ready for installation - no prep required out of the box\u003c\/li\u003e \u003cli\u003eEnhanced engine breathing - can improve throttle response and performance under load\u003c\/li\u003e \u003cli\u003eDurable construction - designed to last for many years with proper maintenance\u003c\/li\u003e \u003cli\u003eLifetime-limited warranty (when maintained per instructions)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003cul\u003e \u003cli\u003eFilter type: Panel air filter\u003c\/li\u003e \u003cli\u003eFilter media: Oiled cotton-gauze\u003c\/li\u003e \u003cli\u003eDimensions (approx): 14\" x 8\" x 0.875\" (length x width x height)\u003c\/li\u003e \u003cli\u003eWashable\/re-usable: Yes\u003c\/li\u003e \u003cli\u003eTypical maintenance: Clean and re-oil periodically per driving conditions\u003c\/li\u003e \u003cli\u003eWarranty: Lifetime limited (manufacturer warranty when maintained properly)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eIncluded Components\u003c\/h4\u003e\u003cul\u003e \u003cli\u003e1x reusable panel air filter (33-2530)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eProduct Description\u003c\/h4\u003e\u003cp\u003eThe K\u0026amp;N 33-2530 is a premium, washable and reusable panel air filter designed as a direct replacement for stock filters on a range of classic BMW and Porsche vehicles. With oiled cotton-gauze media and multi-layer construction, it provides superior airflow compared to conventional paper filters - which can help improve throttle response, engine breathing, and performance under load. Because it's a washable design, the filter can be cleaned, re-oiled, and reused many times, reducing long-term maintenance costs and waste.\u003c\/p\u003e\u003cp\u003eThis filter is particularly suited for owners of older cars - such as late-'70s to early-'90s BMW 3-Series, 5-Series, 2500\/3.0\/E3 sedans, or various generations of the classic Porsche 911 and 930 - who want a balance of improved airflow and proper filtration without modifying their intake systems. Installation is generally a simple drop-in when the airbox and filter housing match the standard dimensions. For long-term durability and peak performance, follow K\u0026amp;N's cleaning and re-oiling schedule, and ensure the filter seals properly in the air box before closing it up.\u003c\/p\u003e\u003cp\u003eWARNING: \u003cstrong\u003eFitment Note:\u003c\/strong\u003e Because 33-2530 is designed for older BMW and Porsche cars, always verify that your vehicle's model year, engine code, and air-box dimensions match the original specification before installation. Use this filter only in vehicles where 33-2530 is confirmed or cross-referenced. \u003c\/p\u003e","brand":"K\u0026N Engineering","offers":[{"title":"Default Title","offer_id":53362921570623,"sku":"KNN33-2530","price":77.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0832\/7308\/9343\/files\/2f5d9c5bdd545bac90022c1c0f5197c4.jpg?v=1780090072","url":"https:\/\/wcaperformance.com\/products\/k-n-replacement-air-filter-porsche-911-930-3-0-3-5l-turbo","provider":"WCA Performance","version":"1.0","type":"link"}