For 1-1/2" carb applications (HS4, HIF4/38), this Conical K&N filter is the answer. Fits single or dual carb setups. Sold individually. K & N airfilters are unsurpassed in performance yet are compact in size to fit in even the most cramped quarters.
56-9320 Product Specifications Weight: 1.1 lb (0.5 kg) Product Box Length: 6.56 in (167 mm) Product Box Width: 6.31 in (160 mm) Product Box Height: 3.5 in (89 mm)