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Old 02-23-2008, 11:30 PM   #4
Top Scoob 006
Member#: 14424
Join Date: Jan 2002
Chapter/Region: South East
Location: Stuart, FL
BugI w/ 07 STi Swap


the header faq linked above is all you should need to know.

to correct the statement above... equal length headers generally outperform unequal length headers everywhere... they spool earlier and make as much or more power up top as well. its a more efficient design, but it does lose the boxer rumble.
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