http://www.autoanything.com/exhaust...#customerReview

The Gibson Dual Extreme

or

http://www.autoanything.com/exhaust...#customerReview

The Flowmaster Force II Dual Rear Exit



I will be buying one of these but i need your help in determining which one is louder.

 

I would say Flowmaster, they usually are louder.

 

I had a gibson dual on my super duty and it was barely louder than stock.
Go with the flow

 

dont settle for the force II go with the american thunder

 

From what I read, those Gibson Dual Extreme's are very loud. Check out their website for more info.

 

Flowmaster is probable the loudest of the ones you want to chose from. Any after market exhaust will be loader than stock, So you will be better off which ever one you put on your truck.

 

From what i have heard gibson is good for dodge not ford. Fords u can barley notice it is there. I listened to i think the exhaust clip for the expedition on the gibson site and i have to agree with people that have told me what i stated above i could hear the engine more then the exhaust sounded maybe alittle louder then stock i dont knwo what the engines in the expes sound like i would imagin the same as the f150s but i dont know cause of the shorter wheel base and all that. just my 2 cents>

 

Flowmaster. Make sure it's the original 40 series too.

 

Some wise opinions here.