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      12-10-2012, 02:55 PM   #4
m3an
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Quote:
Originally Posted by C ///M View Post
Interested and local.

Sorry I'm not that familiar with the e9x M3 exhaust specs, but what is the inlet/outlet size for these? 2.5"? Also, I assume they are a straight flow-through design?

Thanks,

bump for OP;

yes they should be 2.5 diam; IMO these look like Vibrant brand, so you can look up specifici specs there and I would be hard pressed to believe Challenge makes their own resonators.