Recently had a new Magnaflow put on my 2008 F150 in place of the stocker. Since replacing with the Magnaflow my MPGs have dropped from 13.2 to 11.8 -12MPG. This is the third Magnaflow I have had and the only one which has decreased my MPG. Any ideas on what might be causing this? Thanks.

 

Your foot?

 

X2

Plus winter fuels.

 

x 3. Same happened to me. After I installed my magnaflow I couldn't help but to punch the gas to hear that sweet sound every chance I got.

 

Typical men. No help to us ladies! Merry Christmas to all!

 

Who buys an exhaust but doesn't get on it to hear it? Sounds like a waste of money .....typical women lol

 

Bossman to our rescue...

 

I gained with mine... I am light on my gas pedal. I never understood why people stomp on it. I love low rpm cruising sounds with duals

 

I agree. low rpm grunt sounds great with duals!

 

^agreed, i only stomp on it on the highway but other words cruising around town with the low grunt sounds sweet..your foot would explain the gas issue

 

I like to open her up getting on the interstate!

 

Yes, that is fun once in a while

 

i wonder if the people in them toll booths hate guys like us

 

Probably! I'll be going threw some tomorrow. I will make sure to wake them up too!