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Old 09-23-2004, 03:31 PM   #10
iON Performance Inc
Member#: 7673
Join Date: Jun 2001
Location: Calgary, Alberta, Canada

alpinelegacy - Power gains all depend on whether or not you have other performance components (ie: headers, hi-flow cat, cams, intake, engine management). On the EJ25 motors the average gain is between 4-7whp gains. [for 2.25 piping]
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