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Old 12-18-2018, 03:19 PM   #8
Dave80GTSi
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Join Date: Sep 2016
Location: Central Ohio
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The only differences between the early and later model year exhaust manifolds are their exhaust flange dimensions.

See my pictures in Post no. 2 here: What's the difference between early and late cat delete pipes?

While I have never had a need to try this, it seems like it would be possible for an early model year car to fit the later model headers (like these Fabspeeds) if the secondary pipes are also swapped to the later models as well.

Thanks - DM
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Last edited by Dave80GTSi; 12-19-2018 at 01:39 PM.
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