I have a 05 FX4 SCREW 5.4 liter and i want to increase the ponies. Any help would be greatly appreciated i was looking at a K&N system. I have a EDGE programmer in the truck. Also, would this also help the mpg? Thanks

Troy

 

i have the K&N system, and its great. however if you plan to stay with the edge, i would recomend the AF1 3" or the Airraid intake systems, due to the fact that they will increase power without leaning out your engine. The other intakes (K&N included) require custom tuning to keep your engine safe.

 

Is that system opened or boxed I live in the Seattle area lots of rain and i do love the mud.

Thanks Troy

 

AF1 is an open filter design. I installed one on my 02 5.4l about 3 weeks ago. It gave the engine a nice growl during hard acceleration. I noticed a little better throttle response, but have not been able to check if mpg increased. Unless you sink your truck, I don't think the open design will be a problem.

 

Does it really matter on if it is a open or closed system and anyone running an 05 5.4 with a Edge system?

T

 

I myself would run no CAI in combination with the edge on a 3valve.
Your asking for possible problems IMO. How will you know if it's running lean?? You may find out if it runs lean enough to put it over the limit I would either leave it with just the edge or get custom tuning!! The edge can only fix a lean condition at WOT.

 

my K&N is open box, and its fine like that. i do a love of offroading during hunting season, and it rains here too and i havent had any problems.

 

Who makes the S&B system? Anyone running a 05 5.4 with the edge.. i for the most part run the edge on stage 2. I do not want to run too lean but during normal driving is that much of a problem. Would just changing the stock L pipe and using the OEM filter box be worth it? T

 

S&B makes S&B, they also make the filter for AF1. I had the Edge on my 05 screw 5.4 and it worked great on my stock truck until I added a cat-back and cai then it leaned out bad. Are you looking to put an Airraid JR on? If so you wont have any problems.

 

Well ,first off nice truck.. i do not know what i want now. i thought i was going to get a K&N but, now hell just getting info on others. I like the way a closed system is closer to the factory system but.. I will look at the jr set up and see T

 

Thanks, keep reading. I must have changed my mind 20x before I just got the S&B and love it. But I wouldnt get the S&B and the Edge.

 

Running the Airraid JR with the edge i will not have any issues...cool is there any other system that i can run with no worries? Thanks for the info

T

 

From what everyone else is saying you can run the AF1-3'' with no problems.

 

I still question running either of those with the edge myself.
Ya the 3 inch AF1 is okay to run stock but not combined with the edge as far as i know.

Do what you like it's not my truck

My last suggestion to you is to call Mike Troyer or speak to Neil and ask them about that combination.

 

i have run my k&n without a tune and with. never threw any codes when running without the tune. and mine is an 04 which was prone to running lean without tuning with any intake. the airaid i first had did throw a code but the k&n did not.