does any know what exhaust system is best for getting more mpg in a 5.4 im looking to get exhaust but i want more mpg out of it.thanks

 

What are you looking to expect from such? Those wild azz claims out there about 5 or more MPG are all bogus. Your not going to add 5MPG to your bottom line by adding an exhaust, or it would already be like that from the factory. (they love MPG increasers) You can add say a flowmaster American Thunder system and maybe, just maybe add 1-2 MPG. (I'd expect one) It all depends on driving habits, commute type, and multiple other factors including but not limited to mileage, condition of fuel system and plugs, emissions control systems, and so forth. It used to be as simple as changing a carb jet, now its just shy of brain surgery

 

hahah thanks my deal is that im gonna get 33s and i wanna get some perfomance products that make it "seem" like there isnt a big differeance with the tires im also looking into in intake.