new to this site. need a little help in finding a way to increase fuel mileage. would appreciate very much if anyone could help.

 

Driving habits is the one thing that most consumers can do on there own

 

I 've got an 08 300C AWD 5.7 and have swapped the exhaust from the cat back to an SLP LOUDMOUTH system and installed a K&N air filter and the best I can do is 13-14 MPG city and 24+ highway. That's all he wrote

The Fabe

 

to the fabe, most of my driving is cpuntry because we live in a small town, so how did you get on the highway 24+ on the highway. if you changed the computer chip I would like to know what kind and where to get one. I really think that this 5.7 should get more than 18 mpg on the highway thanks johnnaralph