Gas mileage 2001 malibu 3.3 engine

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Old 08-10-09, 11:53 AM
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Question Gas mileage 2001 malibu 3.3 engine

Can you improve gas mileage by installing duel exhausts &is it cost effective?
 
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Old 08-10-09, 12:05 PM
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In order....

Doubtful & and no. You would only be doing it from the cat back..which really doesn't do anything except make a car look "sporty". There are some cars that actually have fake dual exhaust..only one side is functional.

Now if it was a '67 Malibu.. the answer is yes to both.
 
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