K&N Custom Racing Assembly Filter 5-1/2 x 9 x 4-1/2 KN56-1220 Breathers Increased material strength overcomes valve

Increased material strength overcomes valve train harmonics and stress

4 x 1/8" NPT plugs are included so the remaining unused ports can easily be plugged

This complete commitment to performance has enabled Air Flow Research's cylinder heads to find themselves on the fastest race cars and the most powerful street machines in the country

4" or 5" tubing diameters

75 in (349 mm)

K&N Custom Racing Assembly Filter 5-1/2 x 9 x 4-1/2 KN56-1220 Breathers Increased material strength overcomes valveK&N Custom Racing Assembly Filter 5 1 2 x 9 x 4 1 2Fits Weber IDA 48 mm KN56 1220 KN56 1220 56 1220 K&N Custom Air Filters for Weber carburettors K&N Custom Air Filter kits are designed to allow the maximum performance from your carburettors, yet keep the dirt on the outside where it belongs. Show quality to fit racing vehicles with VW, Pinto or any other engine equipped with these performance carburettors. All assemblies come with a famous K&N High