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Old 04-07-2017, 09:38 AM   #2 (permalink)
Ecky
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Join Date: Dec 2011
Location: New Zealand
Posts: 5,077

ND Miata - '15 Mazda MX-5 Special Package
90 day: 39.72 mpg (US)

Oxygen Blue - '00 Honda Insight
90 day: 54.69 mpg (US)
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Can't say I know much about cats and such, but why not fish around and see if you can get a stock exhaust, or at least just the catalyst? Someone would probably be delighted to have your straight pipe.
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