Pipercross KK150 chrome top, low-conical, foam air filter for 1.75" SU carburettor. Full flow, high capacity competition foam air filters. The KK range of Pipercross high performance air filters offer the ultimate in engine filtration. They are designed for people who want the very best from their engine. All Pipercross filters are designed for both road and competition use. All Pipercross filters are manufactured using the latest technology and special porous foam, which has been proven to retain far more dirt than ordinary filters, with virtually no restriction of air flow. The KK150 was specially designed for Mini and Metro SU applications. It's supplied with a special clearance gasket and eliminates the clearance problems often associated with Mini fitments.