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Old 02-18-2019, 03:17 AM   #1 (permalink)
simking48
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Join Date: Jan 2018
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Default Best headers flow

Hi, I'm about to change the headers/test pipes part of my exhaust. Without considering the cost, does anyone has a feedback about which of these two settings has a better flow rate :

-ISR longtube headers

-Z1 headers + Z1 test pipes




*Z1 doesn't produce anymore longtube Headers...
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