Thread: PRE Stepped diameter 4 to 1 double slip collector Header
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Old 02-27-2014, 11:54 PM   #4
kiichiro
corolla specs/GTR looks
 
Join Date: May 2013
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Has anyone installed this with a vortech and shot before and after header dyno?
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Hers: 2007 987S
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That was fun, thanks Hachi
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