i would like to increase MPg next

i have installed the air dog two kit , by pass oil and coolant filter
the swamp 58 volt FCIM

Fuel pressure gauge

Changed all the fluids

I do not know if i should do the exhaust Banks Stainless kit or get a tune from Eric

 

Tunes can help quite a bit...but with the stock exhaust the engine is choking. I saw the most gains with an intake and exhaust. Adding the tuner would be icing on the cake.

 

Stay away from 35s! I dropped 2 points in town when I went to 35s. I got some back taking that restrictive front off of my air intake. NO, I am NOT saying to buy an aftermarket CAI, I am saying taking the front off while using an AiRaid reuseable filter got back some of that 2 mpg I lost going to 35s.

 

That depends on driving habits. I do a lot of highway driving and I picked up mileage by going with 35's. I cruise up nice and easy until the converter locks and just keep it locked up. I can cruise at 70mph @ roughly 1800rpms. Seems to get the best mileage around 60mph though.