High-end 6-petal barrel valve manifold for all smallframe Vespas with 2- and 3-bore engines and standard or 180 turned cylinders. Made of a special aluminum (223 G-Al Si 10 mg). Comes with a 6-valve plate, rubber linkage, gaskets, all bolts and bits. This manifold makes huge carbs from 28 to 34 mm on a smallframe Vespa possible! Attention! Be aware that to fit these headers, you will have to make significant modifications to the chassis.