Just bought my first dodge and loving it. 2009 Dodge Ram V8 4.7. truck is great but going from a civic getting 30 mpgs to 15-18 is a big gas shock. People have told me that flowmasters increase your gas mileage. Is this true? i have been searching for the flowmasters for the 2009 4.7 and it seems that flowmaster haven't made them. they have them for the 5.7. will the 5.7 fit and work correctly on the 4.7???

 

You just need to find out the size of your pipes and the how wide it is and get one to fit in there? Most get them from Mufflex not sure if its .com or what but google mufflex. But those are Magnaflow....