This needs to be in a kit with the throttle body spacer as the two go toggether and need each other to operate efficiently. I bought the spacer and had a bogging issue, bought the intake and the two together was a night and day difference. More low end, better throttle response, mid range is fantastic. Must buy together to benefit.
If you're going to buy this than buy the intake. Noticed a difference with just the throttle body spacer but had a bog to it. I ordered the intake and the two together are a drastic difference better low and definitely mid range response. Haven't noticed any in gas mileage. But do buy the set. I have full after market dual exhaust and k&n filter with factory air box.
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.