What is the best air intake system for 2004-2008 F150 truck for either 4.6 or5.4 engine.There is so many out there.A friend of mine got an AFE Stage 2 intake system for $210 w/free shipping.Is this a good intake system.

 

you realize this question is asked a thousand times a day?....lol look at threads and you will for sure find your answer.......anyways,....alot of people swear on s&b....so thats probably a great bet...but get a tune or you might run lean

 

X2! Use the search feature and you will find more than enough answers. Be prepared, you will see several recommendations. I would suggest calling Troyer Performance or Justin at VMP Tuning and speak with those guys. Tell them what you are looking for and they will give you good advice. Also, go with a custom tune. A stock truck with a CAI alone will not be "that" big of a difference.

 

I have an AFE stage 2 and it works just fine. I have had no " Lean " issues. I worried at first about going lean after reading the comments from about 10 people on this forum about going lean and NEEDING a custom tune from a couple of the venders on this site but after talking with afe and my local Ford guys and numerous shops in the area AND having it checked I have quit worring and started to enjoy the extra boost at freeway speeds..

 

Having it checked as in being on a dyno and having the A/F ratios read?