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-   -   Question on Catalytic Converters (http://986forum.com/forums/performance-technical-chat/25464-question-catalytic-converters.html)

Johnny Danger 07-17-2010 03:16 PM
Question on Catalytic Converters
 
I have a set of secondary cats for sale that came off of my 986 "S". I have received several inquires from other boxster owners regarding compatibility with their base model . Clearly, the headers/pre cats are completely different between the "S" and "non S". However, are the secondary cats different between the two models ? Will they work with either engine ? Does anyone know ?

Johnny Danger 07-18-2010 06:04 PM
Can anyone help with the answer ? Or should I go see Mr. Whoopee ?

BYprodriver 07-19-2010 09:02 AM
Quote:
Originally Posted by Johnny Danger
I have a set of secondary cats for sale that came off of my 986 "S". I have received several inquires from other boxster owners regarding compatibility with their base model . Clearly, the headers/pre cats are completely different between the "S" and "non S". However, are the secondary cats different between the two models ? Will they work with either engine ? Does anyone know ?
1997-1999 has a smaller pipe diameter & flange 3 bolt pattern so they will not bolt together. If you are refering to 2000- 2.7 pipes I am not sure but I bet if it is same gasket part # it probably is the same.

Johnny Danger 07-19-2010 09:21 AM
Quote:
Originally Posted by BYprodriver
1997-1999 has a smaller pipe diameter & flange 3 bolt pattern so they will not bolt together. If you are refering to 2000- 2.7 pipes I am not sure but I bet if it is same gasket part # it probably is the same.

Yes, I am referring to the 2.7 engine. I know that the 2.5 has a completely different exhaust configuration. Thanks for pointing that out .

chaudanova 07-19-2010 11:58 AM
Johnny, as far as I know, the 2.7 and 3.2 setups are the same by means of the secondary cats and are interchangeable.

Johnny Danger 07-19-2010 12:23 PM
Quote:
Originally Posted by chaudanova
Johnny, as far as I know, the 2.7 and 3.2 setups are the same by means of the secondary cats and are interchangeable.
Great. Thank you. :)


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