What's the Difference? 4AGE Black Top Vs Silver Top headers

Comparing the 2 different 20v 4AGE header combinations and the secondaries. The used secondaries aside from having a dent in a front pipe from the car/driver they were from. Are considerably restricted after the collector. This is OEM and had not been damaged at all I just removed the heat shields. I am modifying these to use on a 16v small port.

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• #toyota
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• #exhaust