2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.
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Modifying the aux port sleeves?

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Old 06-07-20, 07:14 AM
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Modifying the aux port sleeves?

Is there any sort of porting that can be done to the aux port sleeves on a 6 port? Say to make them open up before 3800 (maybe closer to 33-35?) or to help them breathe more as they’re opening up?
Old 06-07-20, 08:32 AM
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someone used to sell an insert that made them flow better, atkins? pineapple?

you can experiment with the opening time too, i've heard later is better
Old 06-08-20, 05:53 AM
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Pineapple Racing sold the auxiliary port sleeves. Pretty good product if I remember correctly.
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