I've seen testimonials where an exhaust system upgrade from the catalytic converter back tothe tailpipe has increased fuel mileage about 3 MPG.
As far as the sound, it would be very hard for me to decide which muffler would sound best for you. Probably best to go to a couple of sites to listen to these mufflers on cars similar to yours.
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Monday, April 15th, 2013 AT 3:37 PM