{"product_id":"k-n-33-2573-replacement-air-filter","title":"K\u0026N 33-2573 High-Flow Performance Washable \u0026 Reusable Replacement Panel Air Filter - Drop-In OEM Upgrade for Audi S6 C4, Audi V8 Quattro, BMW E34 530i\/535i, BMW E32 730i\/735i","description":"\u003cdiv class=\"product__description rte\"\u003e\n  \u003ch2\u003eK\u0026amp;N 33-2573 Performance Panel Filter\u003c\/h2\u003e\n  \n  \u003cp\u003e\n    Give your classic Audi or BMW a simple breathing upgrade with the K\u0026amp;N 33-2573. This serviceable cotton gauze panel insert drops straight into the factory air box for a cleaner, sharper intake response and long-term savings. Compared to a throwaway paper element, the 33-2573 offers excellent airflow with reliable engine protection, helping your V8 or straight six feel more eager across the rev range while keeping maintenance easy.\n  \u003c\/p\u003e\n  \n  \u003cp\u003e\n    We run these filters on our own builds at MJ Modifications and customer feedback has been superb for fit, finish and value. If you are looking for a sports air filter insert for an Audi S6 C4, Audi V8 Quattro or BMW E34 and E32 models, this is the correct panel element.\n  \u003c\/p\u003e\n  \n  \u003ch3\u003eWhy enthusiasts choose this filter\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eDirect-fit panel element for the OE air box\u003c\/li\u003e\n    \u003cli\u003eHigh-flow cotton media designed for improved intake efficiency\u003c\/li\u003e\n    \u003cli\u003eWashable and reusable for a lifetime of use\u003c\/li\u003e\n    \u003cli\u003eStraightforward servicing and quick installation\u003c\/li\u003e\n    \u003cli\u003eCost-effective alternative to disposable paper filters\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \n  \u003ch3\u003eConfirmed fitment\u003c\/h3\u003e\n  \u003cp\u003ePlease double check compatibility before ordering. If you need help, contact us and we will verify it for you.\u003c\/p\u003e\n  \n  \u003ch4\u003eAudi\u003c\/h4\u003e\n  \u003cul\u003e\n    \u003cli\u003eS6\u003c\/li\u003e\n    \u003cul\u003e\n      \u003cli\u003eS6 C4 Saloon (4A2): S6 4.2 Quattro 213 kW \/ 290 HP 06\/1994 to 10\/1997\u003c\/li\u003e\n      \u003cli\u003eS6 C4 Avant (4A5): S6 4.2 Quattro 213 kW \/ 290 HP 06\/1994 to 12\/1997\u003c\/li\u003e\n    \u003c\/ul\u003e\n    \u003cli\u003eV8\u003c\/li\u003e\n    \u003cul\u003e\n      \u003cli\u003eV8 441, 442, 4C2, 4C8: 3.6 Quattro 180 kW \/ 245 HP 04\/1993 to 02\/1994\u003c\/li\u003e\n      \u003cli\u003eV8 441, 442, 4C2, 4C8: 3.6 Quattro 184 kW \/ 250 HP 10\/1988 to 02\/1994\u003c\/li\u003e\n      \u003cli\u003eV8 441, 442, 4C2, 4C8: 4.2 Quattro 206 kW \/ 280 HP 10\/1991 to 02\/1994\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/ul\u003e\n  \n  \u003ch4\u003eBMW\u003c\/h4\u003e\n  \u003cul\u003e\n    \u003cli\u003e5 Series\u003c\/li\u003e\n    \u003cul\u003e\n      \u003cli\u003eE34 530i 3.0 138 kW \/ 188 HP 1988 to 1991\u003c\/li\u003e\n      \u003cli\u003eE34 535i 3.5 155 kW \/ 211 HP 1988 to 1995\u003c\/li\u003e\n    \u003c\/ul\u003e\n    \u003cli\u003e7 Series\u003c\/li\u003e\n    \u003cul\u003e\n      \u003cli\u003eE32 730i 3.0 138 kW \/ 188 HP 1986 to 1994\u003c\/li\u003e\n      \u003cli\u003eE32 730i 3.0 145 kW \/ 197 HP 1986 to 1994\u003c\/li\u003e\n      \u003cli\u003eE32 735i 3.5 155 kW \/ 211 HP 1986 to 1992\u003c\/li\u003e\n      \u003cli\u003eE32 735i 3.5 162 kW \/ 220 HP 1986 to 1987\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/ul\u003e\n  \n  \u003ch3\u003eFitment verification before shipping\u003c\/h3\u003e\n  \u003cp\u003e\n    For peace of mind, we confirm compatibility prior to dispatch. Add your UK registration or the last 7 digits of your VIN at checkout and our team will validate the part against your vehicle.\n  \u003c\/p\u003e\n  \n  \u003ch3\u003eFitting service\u003c\/h3\u003e\n  \u003cp\u003e\n    Prefer professional installation by enthusiasts who know these platforms inside out? Book fitting with MJ Modifications in Warwickshire. Request a quote at \u003ca href=\"mailto:info@mjmodifications.co.uk\"\u003einfo@mjmodifications.co.uk\u003c\/a\u003e.\n  \u003c\/p\u003e\n  \n  \u003ch3\u003ePart number\u003c\/h3\u003e\n  \u003cp\u003e\u003cstrong\u003e33-2573\u003c\/strong\u003e\u003c\/p\u003e\n  \n  \u003ch3\u003eSearch-friendly terms\u003c\/h3\u003e\n  \u003cp\u003e\n    performance panel insert, reusable sports air filter, cotton gauze induction filter, serviceable air element, factory air box panel filter, direct fit intake filter, lifetime air filter, intake upgrade for Audi S6 C4, Audi V8 Quattro panel insert, BMW E34 530i filter element, BMW E34 535i induction filter, BMW E32 730i air filter panel, BMW E32 735i sports filter, classic Audi air filter upgrade, classic BMW air filter upgrade, OE air box replacement filter, enhanced airflow panel, washable engine air element, high flow cotton panel, drop in intake filter for Audi and BMW\n  \u003c\/p\u003e\n\u003c\/div\u003e","brand":"K\u0026N","offers":[{"title":"Default Title","offer_id":56008660713858,"sku":null,"price":63.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0871\/5445\/8937\/files\/33-2573_1.webp?v=1764090349","url":"https:\/\/mjmodifications.co.uk\/products\/k-n-33-2573-replacement-air-filter","provider":"MJ Modifications","version":"1.0","type":"link"}