Fast7

It's just a resonator and there to muffle the exhaust in addition to rear muffler I believe. I removed it just to get a bit of a deeper exhaust note. Edge runs fine and has a deeper tone to it. Easy mod and I like the tone.

A sound clip won't sound any different than the factory exhaust. It's such a small difference.

New to the forum and new to the Ford Edge. But the forum has given me some great ideas. Today I went to a local muffler shop and had my center muffler removed and a straight pipe put in its place. The Edge sounds slightly different now, not a lot different but just a little louder with a bit of a deeper tone. I like it and am happy with the sound. It's such a small difference that no one should be worried that it will be too loud. Cost $60

This is a test 123

It's really about getting more air to the throttle body. If you have more air that equals more power with more fuel. But...you now have more available horsepower to keep your vehicle travelling at 65mph which in turn lets you back off the throttle a little to stay at 65mph in turn increased fuel mileage. I travel long distance (2000 miles) in various vehicles and I always take out the air filter on long trips but I check my mpg before filter removal and after. Sometimes it's 1-2 better mpg with it removed and sometimes 2-4 mpg better. I know its not good driving without an air cleaner but I'm simulating a free flow k&n intake for my own knowledge. Just saying.

I would like to know the sizes of the plugs also

I would like to know the sizes of the plugs also