Originally Posted by Ifsjeep
I honestly don't think getting a CAI or exhaust is going to make any noticeable difference in fuel economy or throttle response, it's most likely placebo effect. Unless you change headers they will always be your restricting factor.
Only a dyno test would prove anything, but it does look pretty sweet...and i'm sure it sounds bad ass to!
I can share some of your doubt in CAI in producing more horsepower, I recently watched a youtube video from the UK that twice proved that CAI's actually robbed 3-4 horsepower on a dyno using 3 different cars and three styles of filters from one manufacturer.
Now look at this mod from this standpoint. These mods do change the overall driveability of the pentastar.
The same way the high end sneakers may not make you run any faster. But your knees may feel better after the run which has some value to you, so you can't use horsepower as the only absolute factor for deciding if a mod is successful or not unless that is the only unit of measure that you want to consider.
On another note about the ECU adjusting to suit a mod.
It does not completely dial itself back to pre mod. I basically uses the mod to complement the overall tuning parameters.
Here is an example, when I installed my HEMI magnaflow sytem the car took a total of a month for it to mellow out and fine tune the addition of the magnaflow.
Then I added the stock OEM HEMI exhaust after going back to the stock single exhaust, the tuning process did not take as long.
They had to replace my TIPM so me car reverted back to the base tune since the battery had to be disconnected. I felt just like the other pentastar laredo we own. It felt like it had a cork up its butt, but after having been driven for the past three days at like 30 minutes at a time you can feel it tuning itself back to the way it was before the battery cable got disconnected.
So it would be unfair to say that ECU will counteract the benefits of a mod after a period of time. It would be better to say that it capitalizes on the mod in addition to the adaptations it has made to the base tuning.
My guess is that during the colder times of the year the CAI will make use of the denser cold air but as things heat up in the summer the benefits may slide in the other direction.
The butt dyno is not always a placedo effect, if you put heavy wheels on your car you will notice the reduction in acceleration and braking performance, You don't always need fancy measuring devices to tell you when you did something counterproductive to your car.