Just bought a F150 Lariat with the 5.4 liter. Love the power and it sounds pretty good just stock. Was wondering how much power the FIPK really creates. Honesty please, no exagerations. Also will a good cat back exhaust system make more power, I dont want anything real loud though. TIA for your responses.

 

I've got a 4.6 and I installed a FIPK, didn't notice any power improvement, not to say it isn't there. It's nice to have a air filter that just need to be cleaned instead of buying a new one, and I like how it looks instead of that stock air intake system.

Now as for exhaust, I noticed a slight decrease in low end, but a noticable improvement at higher rpms, especially when passing people on the highway.

 

They claim it's dynoed at 12-14HP; so probably less. K&N e-mailed me 2-4%HP on filter only; 5-7%HP on FIPK.
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2000 F-150 XL, RC, LB, 5.4L, 4R70W, 3.55LS,
Class III tow, Payload #3, & Convenience pkgs.,
4-wheel disc/ABS, Chestnut/Parchment 40/60,
Ford bedliner w/Paintsaver & gas/wheel/spare locks,
K&N F.I.P.K. w/Outwears pre-filter, Superchip,
Dynomax ultra-flow welded 3" cat-back w/ 3" Y-pipe,
Hellwig front & rear anti-sway bars, Rancho RS 9000s,
Mobil 1, K&N oil filter.




[This message has been edited by max mitchell (edited 01-30-2001).]