Ironman, that is encouraging and discouraging. I have always thought of performance as not getting better mileage but the opposite. I would think with some fuel mapping and changing the air intake that would help cause it can breath better but maybe I have it all wrong. When this tank is empty I will see what kinda mileage I got but maybe I need to take it back and ask the shop what they think.

 

I have a little over 11k on my 2010 Limited. For the first two or three thousand miles it got around 37-38 mpg. After that, running locally at around 60 mph it went up to 42 mpg on average. At 10k I installed 255 cams, Fuelmoto ceramic coated header pipe, Supertrapp Fatshots mufflers and an SE intake. Milage has stayed pretty much the same as long as I stay out of the throttle, still running around 42.

 

Took a real nice ride today from Pensacola, Fl to Slidell, La. 168 miles on one tank. Overall mileage was 36.21 per gallon (5 gallon tank.) Could have made 170.

The weather was great. Did plenty of waiving to other riders especially in Ms.