Ok, I just finished doing this to my truck and I have a couple questions. Now mind you, I havent been but on a 10 minute test ride but here goes.

1. What exactly is this mod supposed to do..more air flow...but.....?

2. So far only thing I've noticed, is when Im running about 1500rpm...I gas on it and it will rev up to about 3k before it takes off...but there is more of a feel of get up and go..but if anyone of you did this to an 04-08 ....did you get this sort of "stall" when laying the foot down at lower rpms?

 

Did you unhook the negative battery so the PCM can reclaibrate the a/f mixture?

 

had it unhooked the whole time I was doing the mod.

 

There is a different version for the 97-03 than the 04-08

 

I did the version I was supposed to.....Ill give it time and see what it does

 

I did this mod and to tell you the truth I saw no value to it at first. Then I added the K&N replacement air filter and my throttle response seemed better. As for mpg, after 1,000 miles maybe...maybe slightly better hwy mileage.

I'm not sure why you have a throttle lag? Try and disconnect your battery for 30 sec, recheck your install and make sure things are secure then try again. I didn't have any lag when I did this mod.

 

I did it the other day and noticed slightly better idle, throttle response in my 05 5.4L