Thread: Ram air exhaust
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Old 02-12-2026, 07:05 PM
1950Mercury 1950Mercury is offline
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Default Ram air exhaust
Has anyone used the 9777642 and 9777646 ram air exhaust on 66 GTO? First is it direct bolt on no revamping stuff? Do you need to do Reroute battery cable etc. is there any noticeable power gain?

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