Just wonder which K&N intake system is the best for performance? I've read about their 77series i believe (i think that is the offroad one) and i'm interested. Any suggestions?

 

The best K&N intake system is the FIPK2, its the 3" plastic tube version. It is reliable and produces the best power.

 

Agreed, metal creates more heat soak than the plastic tubes.

 

I've had the 77 series for 4 years now, and have never had any problems or complaints.

 

X2 except that I've only had mine for 2 years. Still, no issues at all.

 

Which is why most car companies are using plastic intake manifolds.

 

Fipk.

 

whats the best one that i can put my 2008 F-150 4.6L v8? Is i only see one. And if someone can link me to the FIPk that would be great.

 

Ive just read on truckperformance.com that the 77 series claims 14-16hp and 26ftlbs which is a metal tube and the fipk only claims 8-10 hp and around 10ftlbs with the plastic tube. and there is only a $20 or $30 diff between the two.

 

does anyone have a pic of these systems under their hoods of an 04 on up 5.4? just wondering what they look like.

 

Correct. A lot of people don't like it but they are simply naive.

Get the S&B with custom tunes and call it a day !!

 

I agree with T here, K&N is decent but better options exist

 

This is the only intake I found for an 08 4.6L by K&N

http://www.knfilters.com/search/prod...x?Prod=63-2574

 

Here is the KN-77 on a 5.4.

 

Thats a darn good looking kit, rivals that of my AF1.