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Old 12-03-2010, 11:44 AM   #14 (permalink)
93 Geo Metro
Join Date: May 2008
Location: Charleston, SC
Posts: 14

Sippy - '93 Geo Metro Convertible
90 day: 43.8 mpg (US)
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There are a lot of old unused cats laying around. You could just pipe a couple up on the exhaust and see what happens. Probably wouldn't cost that much (assuming you can weld) and you would get to actually see what happens instead of just guessing.
1993 Geo Metro - "Sippy"
Economy cam, +10 cam gear, 3.85:1 ratio
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