I've been wanting dual exhaust for a long time now and have recently been looking to buy it. My friend recommened flowmaster to me. Does anyone know how well the Flowmaster Delta Flow 40 Series works? Anyone own this and isn't satisfied with its loudness inside and outside the truck? Also, do you think this will increase my mpg? Currently I'm getting about 11, this is my first time I've checked it so I don't know the average.

 

it should bring you to around 15 mpg...Its a quite a bit louder on the inside and out...Not obnoxious though, its got a sweet hum....i was getting 9-11 MPG, i got my magnaflow put on, now im at 15..Not sure how it will work on yours though...I have a 3" single pipe, 98 ram 4x4 5.9.....

 

Awesome, I also have a 98 ram 4x4, 5.9L engine. Where did you purchase yours from? And did you have it professionally installed?

 

The 40 series delta flow will be quieter on the inside than the regular 40 series.

 

i have magnaflow and i love the sound, here is my clip

Magnaflow Exhaust System

Enjoy, IMHO magnaflow sounds more quality than flowmaster, but flowmaster has a louder sound.
Its your choice

Later

 

Is it still noticable from the inside? I'm not familiar with the regular 40 series. I'd like to hear it in there too.

 

Can anyone post a clip of the flowmaster delta flow 40 series to compare with the magnaflow?

 

I have the flow Master Delta 40, I am very happy with it. It is not much louder inside the cab and is not a lot louder outside. It is more of a mellow aggresive sound. Use this link for the Flowmaster Mufflers each one has a sound clip so you can get an idea how each one differs.

 

Do you mean as compared to the stock exhaust?

 

Yeah compared to stock.