ITG Profilter foam air filter for original airbox HMP-478

Discover the Profilter HMP-478 foam air filter, specially designed to fit your original airbox. Handmade in England, this high-performance replacement filter uses the same materials as those used in Formula 1 and WRC. Thanks to its TriFoam technology, comprising three layers of foam with high filtration capacity, it efficiently captures dust particles down to 5 microns.

This filter allows better airflow than cotton or paper models available on the market, providing fuel economy at constant speed and increased power by minimising pressure drop. It is washable and reusable, with a service life of up to 10 years. Ready to use, the filter is pre-oiled for immediate use. For maintenance, remember to obtain the cleaning kit, reference: CLK1. Compatible with all Porsche 928 models produced between 1977 and 1995.