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5th & 6th port headers anyone heard anything bout them?

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Old 11-20-01, 10:40 PM
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5th & 6th port headers anyone heard anything bout them?

so are they good or not? worth paying the extra $60 for. do they actually work good.
Old 11-20-01, 11:42 PM
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Re: 5th & 6th port headers anyone heard anything bout them?

Originally posted by MazdaRx7Power
so are they good or not? worth paying the extra $60 for. do they actually work good.
Are you talking about the RB header/presilencer system with the backpressure pickup tube for 86-88 NA's? If so then yes, it's supposed to work. 89-91 NA's don't need it because the 6 port actuators are activated by the air pump.
Old 11-20-01, 11:58 PM
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If you are talking the modified one to open the 5th & 6th ports offered by Mazdatrix then its only $13 extra. They regular one costs $187 & that one costs $200. I have it but not on as my car broke down before I got it on.
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