Synonyms for Manifolds:

n.

•car parts (noun)
accelerators, ignitions, chassises, speedometers, taillights, connecting rods, camshafts, fenders, radiators, gears, shock absorbers, clutches, dashboards, bumpers, fans, horns, distributors, windshields, mufflers, generators, gearshifts, gearboxes, steering wheels, chokes, odometers, crankshafts, spark plugs, differentials, pistons, cylinders, hoods, carburetors, exhausts, bearings, cowls, transmissions, crankcases, glove compartments, brakes.