[Gave_up_my_Bowtie]

Originally Posted by swagtime911

Nice work Bowtie.

I think that it was cool to do back to back runs, but it doesn't change my outlook on changing out the air intake and replacing it with K&N, Airraid, etc. I am sure on any dyno you will show an increase no doubt, but I bet if you were to re-dyno in say 1 month, your gains will be all but gone. Without a programmer the truck is just gonna readjust for the added air flow and all you will have left is the intake noise. Which is not worth $300-$400 in my opinion.

These mods were done over the course of a week. The intake mods as well as the exhaust mods were done at wide open throttle. Therefore nothing should change because the computer is in what I think is called open loop which doesn't use the O2 sensors only the mass air sensor. At that point we are just running according to what the computer is mapped to run at. So many CFM= so much fuel. Thats why we need programmers or adjustable mass air sensors to change this setting or fool the computer. That was a concern of mine as well with testing over a short time. Thanks for the idea.