So has anyone seen an improvement in their mpg with a WAI? I just added dryer vent pipe directed toward my exh. manifold, blocked off the stock vent, and it appears I've gained 5 mpg according to my scan gauge, on the same stretch of highway, same speed, etc. It's a dog when I punch the gas, though. Can anyone confirm similiar results?
1999 Chevy Prizm Lsi
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