I have been thinking about replacing some of the restrictive intake setup with new pieces. To begin with I was wondering if putting in a throttle body spacer would give noticeable results, either in power/performance or fuel economy. I have also been looking at air intake setups; filters and tubing. Any input is welcome.

 

On these engines a throttle body spacer is a total waste of time and money. For the air intake, you can do what you wish, but the factory setup already delivers far,far more air than the engine's computer will process without modifying the PCM values via reprogramming.

 

So spending the money to tune the computer is a better call?

 

I would say so.

 

Are mail order tunes a good call for these trucks? Who does a good job with mail order tunes?

 

I would do the basic mods 1st (that you planned) like intake/exhaust mods and whatever else, then the pcm tuning companies tune it according to what mods are done, and what you would like increased/adjusted.

 

I already have exhaust on it. I was thinking of doing a K&N Intake set up and a throttle body filter and calling it done. Honestly, I am surprised to see that the computer may hold the gains down when doing an air intake

 

Does anyone have feedback about the K&N, summit version, or some other cold air intake?

 

I would not put a K&N filter on anything. I have a couple of horror stories I could tell on running K&N. If you want a filter you can clean then go with AirRaid. K&N do not filter fine dirt & dust. They use them on race trucks but remember they tear them down after a race. I saw this first hand on both an injected Dodge Dakota 4x4 I owned & my 86 F250 4x4 460 with a Holley 4160.