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914World.com _ 914World Garage _ 73/74 2.0L muffler Vs 75/76 2.0L muffler

Posted by: Garold Shaffer Oct 16 2013, 08:52 PM

So what is the difference between a stock 73/74 2.0L muffler and a 75/76 2.0L muffler?

Posted by: SLITS Oct 16 2013, 09:42 PM

The '73 - '74 Banana muffler has dual inlets for each HE. The flange is somewhat of an oval.

The '75 - '76 muffler is a single inlet from each HE and the flange is triangular. This system is restrictive due to both ports on a side go into one pipe, reverses direction to flow to the back.

Posted by: barefoot Oct 16 2013, 10:21 PM

Look at the PET, the 75,76 is shown as separate item. 2 into 1 shortie headers then a U bend into muffler or cat converter.

Posted by: rhodyguy Oct 17 2013, 09:06 AM

after the stub tubes the gases go forward, then u-turn to the heat exch/heating system. pretty everything is dif except for the copper o-rings and stud nuts. the system weighs a bunch. major pain to remove with lots of rusted fasteners and tight confines.