There was a 1975 set-up with a single Zenith carb and no cat. The manifold is
identical to the later setup, but the front piece of the exhaust system is
different; the rest of the exhaust is the same.
It is very common for people to remove the cat and replace with this exhaust
system, but based on your year, yours is stock.
Andy Slupecki
78B (with 75 exhaust pipe)
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From: Michael Sosnow on Mon, Mar 17, 1997 3:28 PM
Subject: Catalytic Converter?
To: mgs@autox.team.net
I have been told that starting in 1975 all American MGBs were equipped
with a converter unless they are really 1974 1/2s. My 1975 MGB does not
have a catalytic converter although it is equipped with the single
zenith carb. Anybody know if it is stock or modified?
Michael Sosnow
1975 MGB
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