Right now i have a dodge 1500 2005 4.7. My exhaust setup now is single in dual out with a flowmaster muffler. i feel as tho i am losing power somewheres along the line. would i be better off running single in single out or what would the best setup be?

 

I dont think exhaust if the issue. What about tune up parts? Air filters, plugs, wires, trans tune up, tire air pressure, cylinder pressure readings? Ect.

 

Have you always felt your truck is lacking power or is it something that just started recently?