K&N OE Replacement Performance Panel Air Filter - Audi S4/RS4 B9 Quattro milltek-variant-C8 4.0 V8 bi-turbo (Non OPF/GPF Models - USA/ROW Models) 2020-2023 but worth checking if washers

but worth checking if washers are on the removed bolts and to match if required

so is completely reversible if need be and includes all fixtures and fittings

0L EcoBoost Stage 2 induction kit

So it is easy to influence the steering behaviour

Specification:

K&N OE Replacement Performance Panel Air Filter - Audi S4/RS4 B9 Quattro milltek-variant-C8 4.0 V8 bi-turbo (Non OPF/GPF Models - USA/ROW Models) 2020-2023 but worth checking if washersThe K&N OE Replacement Cotton Gauze Performance Air Filter designed to increase horsepower and acceleration while providing excellent filtration. K&N air filters are covered by the famous K&N Million Mile Limited Warranty and will be the last air filter your car will ever need. Both washable & reusable, and is designed to directly fit into the OE factory air box. note: image is for illustration purposes and may differ on delivery