50mm or 70mm Alquati style sport exhaust?

Started by Rev. Bubba, March 13, 2007, 09:12:07 PM

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Rev. Bubba

This Alquati style sport exhaust appears to be best suited for adapting a wideband o2 sensor but it can come in a size of 50mm or 70mm.  Do any of you know why one size would be better than the other?  I am thinking the larger size will be less restricting than the smaller one.

Thanks for the help,
Rev.