Thread: Does anyone notice their gas mileage decrease with the new muffler?
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Old Jun 21, 2008 | 02:54 PM
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tburris
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Joined: Mar 2008
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From: Wells Branch, Austin, Texas
Default Re: Does anyone notice their gas mileage decrease with the new muffler?
I have the magnaflow catback exhaust with the 14805 muffler and just took a 200 mile trip and got
28.57 mpg on the road, ave speed was between
65 & 100 mph. With the A/C on.
 
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