I have a 2004 Larmrie 4dr 5.7 with CAI, single 3" magnaflow with no resinator and flashpaq set to proformance setting. I am running 91 octane, and all my shift points are at the max setting. I was wondering if there is anything else I can do for proformance. If anyone has better setting pease post them. Note I get 10-11mpg in town.(I mostly drive short distance)

 

I also have an 04 and have found that maxing out all the settings gives me the best performance.

 

thanks "Off Road Teacher" for the reply. I only use the 91 setting instead of econ because it gives quicker throttle response.

 

Skullycapone we dont have MDS system on our trucks for one so that puts us at average of 10-14MPG in town and 14-17MPG Hwy while running all 8cylinders.

 

I've got a Magnaflow, CAI, Superchips too... and I can't bust 20mpg unless I set the cruise to 50.