Thread: FLOWMASTER #17443 cat back installed
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Old 11-07-2007, 06:10 PM
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Sweet Mercy Sweet Mercy is offline
U didn't get an I-FORCE 5.7...
  
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Default Re: FLOWMASTER #17443 cat back installed
mwatch, between a Volant CAI and aftermarket exhaust, my gas mileage increased by 6.6% at least when i keep my foot out of it. maybe you could call flowmaster or one of the other premium exhaust companies or serf there websites for any benefits other than sound.
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