Audi S6 C4, BMW E34 530i 535i, E32 730i 735i K&N 33-2573

Direct-fit, washable panel air filter for the Audi S6 C4, Audi V8 Quattro, BMW E34 530i/535i and BMW E32 730i/735i. No trimming, no adapters - drops straight into the stock airbox.

• K&N 33-2573 high-flow cotton gauze media improves throttle response
• Reusable for life - clean with K&N cleaner, oil with K&N oil
• Maintains OEM filtration standards while supporting fast-road or track-day use
• No ECU remap needed; suits stock or mild stage 1 setups