Just wanted to let everyone know that I have a Mac intake for the 4.2 for sale...if you are interested, check the classifieds.
thanks
b

 

Why are you selling it? Not satisfied? Not enough increase in HP?

I was considering purchasing a Mac FIPK for my '99 4.2 F150 and would like honest opinions about the Mac application for the 4.2 engine.

 

i have a mac on mine and i like it. dont have any dino numbers or anything but it does sound better.

 

After installing it, did you notice an increase in HP (Mac claims a 12.6 increase in HP)? You said it sounds better... I'm assuming you mean the sound of the intake and not the exhaust.

Thanks for the info...

 

well it just sounds like it breathes better. intake is louder and exhaust seems louder too. i have no dino numbers so im not gonna say it gave me 12 hp. but it does seem to rev faster and do everything it is supposed too.