2003 Dakota 4.7 L V8 with Automatic Tranny
MPG- loss 13 down to 12.7 with new large MagnaFlow muffler. I did have a manifold leak at the time. IDK if that matters. I think MPG will improve when I get a tune-up and install an in-line performance module. I may need a more efficient fuel pump or injectors, we'll see. Performance- Nice little HP and torque boost, probably close to "as advertised". RPMs- more of em' & higher faster & more freely. Fewer RPMs at cruising speed. RPMs stay lower longer with a light foot. Shifts like a kitten.
so so pretty good
well i had a couple literally missing parts --part E-an L- bracket that bolts the metal tube to the a/c bracket & also missing the collar that ties the metal tube to the throttle body- i think they call it a -well some kind of nylon rubber material--------waiting now on those missing parts-