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wow you guys alreay had a chat about b210's. some of the comments where off compared to my experiance with the car. concerning some things ya'll pointed out, i already have an electric fan, so that is covered. i have a cat convertor, is it helping my mpg or not? i am going to replace the whole exhaust system and wasn't sure about getting a new convertor. my first thought is to throw on a larger pipe with with a flowmaster style muffler, but i don't want to lose milage. seems to me better flow equals better milage. true?
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