Beetle Muffler Types
MUFFLER, bug, 25hp-36hp, through late 1955
MUFFLER, bug, 36hp, late 1955- 1960
MUFFLER, bug, 36hp, late 1955- 1960, very high quality, stainless steel
MUFFLER, bug, 1961- early 1963
MUFFLER, bug, late 1963-1965
MUFFLER, bug, 1966-1971
MUFFLER, as above, 1972-74, except California
MUFFLER, bug 1972-73, CA only, has EGR fitting
MUFFLER, bug, 1974 only, dual preheat pipes, CA only