jdm 4-1 collector mod
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Honda-Tech Member
Joined: Oct 2001
Posts: 1,059
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From: Toronto, ontario, Canada
i have a jdm 4-1 and was wondering if it was worth putting on an actual 2.5 inch collector instead of the "SUPPOSED" 2.5 INCH collector that is on there, also anyone port the flange and have a dyno chart to compare?? was wondering if that was worth it also, My motor has over 200whp N/A now so i was just curious if this was a good mod or what?
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