I have installed a K&N filter in my stock airbox I didnt really notice anydifference with this. I hear if you add the K&N FIPK you can get much better performance?? As well can you buy the FIPK with out the filter and just add the drop in????

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98 F-150 Regular Cab STX flareside, Tinted windows, Headers, K&N, Vortec Cherry Bomb Dual Exhaust, Hypertech Computer, 17X10 Eagle Alloys, 285/60R/17 Pirelli Scorpian Zero's, Alpine Cd deck, White Face Gauges

 

Sorry but the drop in K&N filter does not fit the K&N FIPK. Yeah I had the same problem when I bought my Airaid. In all honesty if I was to do it over again, I'd spend the extra money to the Airforce One because of big chrome tube... I hope this helps you

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99' Ford F150 XL Sport
(Black) V-6 3.55 manual
Mods:
Airaid, Bosch +4 Plat.
Ravin Z-33 SI/DO
Color Keyed Carpet
AVS Headlight covers
AVS Bugdeflector II
AVS Ventshades
Lund Wiper Cowl
Lund Tinted Glass
Lund Soft Bed Cover
V-tech Taillight covers

 

Thanks for the reply a couple of questions first do you think it is worth moving from the K&N drop in the the Air force one?? What kind of performance gains canI expect?? As well I have been contamplating puting Bosch 4's in my 4.6 but is that worth it did you notice anything?? I am almost due for plugs.


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98 F-150 Regular Cab STX flareside, Tinted windows, Headers, K&N, Vortec Cherry Bomb Dual Exhaust, Hypertech Computer, 17X10 Eagle Alloys, 285/60R/17 Pirelli Scorpian Zero's, Alpine Cd deck, White Face Gauges

 

HI!... The open filter kits are worth about 14-15H.P at the flywheel on our trucks.

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NEAL " THE H.P FREAK" E-MAIL :nnewman@sympatico.ca
'99' F-150 XLT SPORT, oxford white, reg cab shortbox stepside,5.4, auto, 4.10L.S, captain's chairs, bedliner, GTS carbon fiber headlight covers, ***** CEPECK clear halogen driving lights, GTS slotted tailight covers (painted oxford white), fiberglass smooth wiper cowl (painted OXFORD WHITE), FORD locking lug nuts, tinted windows,true duel exhaust with 2.5 inch mandrel bent pipes and FLOWMASTER 3 chamber mufflers with 3' tailpipes exiting before the rear wheel like the LIGHTNING, HELLWIG rear stabalizer bar, 3 AUTOMETER guage pods, filled with tranny temp, engine temp, and oil preasure AUTOMETER "PHANTOM" guages,custom fabricated air intake trac and huge K/N filter, TPS mod, BELLTECH 2-inch rear drop, custom programed SUPERCHIP "FLIP-CHIP", BAUMANN ENGINEERING shift kit (on stage 5 setting)BYPASS CLUTCH CONTROL VALVE/PREASURE REGULATOR VALVE, ASP POWER PULLEYS, custom tig welded and ported JBA "JET BLACK coated headers, twin DERALE 16 INCH ELECTRIC FANS, PERMA COOL 14"/10" tranny cooler with 10" electric fan, custom ported (STOCK) throttle body, custom digital air intake temp sensor, custom ported TB intake elbow, relocated ATS, FORD RACING 24LB injectors, RUSSELL stainless steel braided tranny lines with fittings.


FUTURE MODS : BBK 75MM THROTTLE BODY, 80MM PRO-M MASS AIR METER, AADI F1 RAM AIR HOOD WITH CUSTOM FABRICATED RAM AIR SET-UP, CAL-TRAC TRACTION BARS, EXTRUDE HONED INTAKE MANIFOLD, SHM CUSTOM FUEL RAILS, 90/10 FRONT CE SHOCKS, 70/30 REAR CE SHOCKS, BELL TECH 2/4 DROP, EXPEDITION CENTER CONSOLE, HARLEY DAVISON F-150 LOWER FRONT VALANCE (painted oxford white) and a KENNE BELL BLOWZILLA SUPERCHARGER.

ESTIMATED H.P TO DATE : 340H.P / 425ft/lbs of torque.

CURRENT PERFORMANCE : 1/4 MILE - 14.53E.T * MPH - 93.00 * 0-60MPH - 5.8 * 1/8 MILE - 9.2 * 60 FT - 2.0

OTHER TOYS : "83" PRO STREET FORD RANGER : 351-w stroked to 408c.i 625H.P (natural), 875H.P with 250H.P "BIG SHOT" N.O.S kit, tubbed (crome moly tubing), 12 point chrome moly roll cage, 4-link with coil overs, MUSTANG II front suspension, c-4 tranny (race prepped), 4000rpm stall converter(8 INCH), 3" chrome moly driveshaft,AUTOMETER guages, 16.50 MICKEY THOMPSON rear tires, 4" M/T front tires, CENTERLINE CON-VO PRO rims, fiberglass hood - bumper - prostock hood scoop, wishbone trac-link, two chrome moly driveshaft loops, 16 gallon JAZ fuel cell,etc

 

The filter alone only adds a few horsepower. As Neal said, the FIPK adds substantial horsepower. It is one of the top HP improvements for the ease and money.

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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.

 

Don't waste the money on the kit. Cut the air silencer tube out and use the K&N that you already have. That'll give you almost all of the benefit of the kits. I did mine following the instructions on either this site or ford-trucks.com. Do a search on 'air box mod', or something similar. After doing that to my Lariat, I noticed a dramatic increase. So did my right rear tire... ;-)

 

Here man...DO THIS!!!

https://www.f150online.com/f150board...ML/002325.html

-AR

------------------
2001 F-150 XLT 4x4 Off-Road, SuperCab, Flareside, Black[*] 4.6L Triton V8 HPI[*] 5 Speed / 3:55 Reg. Axle[*] Keyless[*] Premium Audio CD

Mods:[*] K&N Cold Airbox / Throttle Body Mod.[*] 3" Cat-Back (No Muffler, Turn-Down)[*] Cranked Torsion Bars[*] APC XENON PLASMA Super Whites[*] Bugshield[*] Bedliner[*] Ventshades[*] Taillight Covers (Slotted)[*] Removed Mudflaps[*] "Light Argent" 4x4 Off-Road Decals[*] K&N & Flowmaster Stickers (Under the Hood)

Audio:[*] Clarion 6675[*] Rockford Fosgate 5x7's[*] Rockford Fosgate G360A2 Punch Amp[*] JL 12W3-D2 (Ported)[*]Viper 500 Alarm

Build Date: 8/23/00 (Kansas City Plant)

arobbins@mail.liberty.k12.mo.us

 

YEP, that's what i'm talking about. That should give you enough info on how to cut the silencer out. A few other sites have instructions with pictures. I noticed a major difference, now I can roast 'em at will. I'd love to see the difference with a better exhaust, but I just dualled out my '85, cut the cats and put the super turbos on it, my wife will be killing me shortly after she finds out I spent the 200 clams.

I wouldn't swiss cheese the air box, no need too. You'll be pulling PLENTY of COLD air in from the fender, and you'll be in great shape. The only change I really made was dropping the filter into the stock canister and pulling the silencer tube. Reset the computer, mash the go stick and hold on. I dream of the 10-15 ponies from a chip and a few more that a cat-back exhaust would add. Maybe pushing 290-300... dreams - very inexpensive to dream...

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2000 F150 Supercab Lariat, 5.4, K&N drop-in, pulled silencer tube.

1985 F150, 302 EFI, K&N, air box mod, true dual super turbos. Looking for stuff to fit my engine!!

[This message has been edited by crab (edited 03-27-2001).]

 

HI!... I didn't want tp spend the "BIG" money to get one of the FIPK's from the U.S. So I designed and fabricated my own custom intake trac. This set-up cost me about half the money and in my opinion looks better than the aftermarket kits. Here's a pic.
http://www.fortunecity.com/silversto...nealsk&n37.jpg

------------------
NEAL " THE H.P FREAK" E-MAIL :nnewman@sympatico.ca
'99' F-150 XLT SPORT, oxford white, reg cab shortbox stepside,5.4, auto, 4.10L.S, captain's chairs, bedliner, GTS carbon fiber headlight covers, ***** CEPECK clear halogen driving lights, GTS slotted tailight covers (painted oxford white), fiberglass smooth wiper cowl (painted OXFORD WHITE), FORD locking lug nuts, tinted windows,true duel exhaust with 2.5 inch mandrel bent pipes and FLOWMASTER 3 chamber mufflers with 3' tailpipes exiting before the rear wheel like the LIGHTNING, HELLWIG rear stabalizer bar, 3 AUTOMETER guage pods, filled with tranny temp, engine temp, and oil preasure AUTOMETER "PHANTOM" guages,custom fabricated air intake trac and huge K/N filter, TPS mod, BELLTECH 2-inch rear drop, custom programed SUPERCHIP "FLIP-CHIP", BAUMANN ENGINEERING shift kit (on stage 5 setting)BYPASS CLUTCH CONTROL VALVE/PREASURE REGULATOR VALVE, ASP POWER PULLEYS, custom tig welded and ported JBA "JET BLACK coated headers, twin DERALE 16 INCH ELECTRIC FANS, PERMA COOL 14"/10" tranny cooler with 10" electric fan, custom ported (STOCK) throttle body, custom digital air intake temp sensor, custom ported TB intake elbow, relocated ATS, FORD RACING 24LB injectors, RUSSELL stainless steel braided tranny lines with fittings.


FUTURE MODS : BBK 75MM THROTTLE BODY, 80MM PRO-M MASS AIR METER, AADI F1 RAM AIR HOOD WITH CUSTOM FABRICATED RAM AIR SET-UP, CAL-TRAC TRACTION BARS, EXTRUDE HONED INTAKE MANIFOLD, SHM CUSTOM FUEL RAILS, 90/10 FRONT CE SHOCKS, 70/30 REAR CE SHOCKS, BELL TECH 2/4 DROP, EXPEDITION CENTER CONSOLE, HARLEY DAVISON F-150 LOWER FRONT VALANCE (painted oxford white) and a KENNE BELL BLOWZILLA SUPERCHARGER.

ESTIMATED H.P TO DATE : 340H.P / 425ft/lbs of torque.

CURRENT PERFORMANCE : 1/4 MILE - 14.53E.T * MPH - 93.00 * 0-60MPH - 5.8 * 1/8 MILE - 9.2 * 60 FT - 2.0

OTHER TOYS : "83" PRO STREET FORD RANGER : 351-w stroked to 408c.i 625H.P (natural), 875H.P with 250H.P "BIG SHOT" N.O.S kit, tubbed (crome moly tubing), 12 point chrome moly roll cage, 4-link with coil overs, MUSTANG II front suspension, c-4 tranny (race prepped), 4000rpm stall converter(8 INCH), 3" chrome moly driveshaft,AUTOMETER guages, 16.50 MICKEY THOMPSON rear tires, 4" M/T front tires, CENTERLINE CON-VO PRO rims, fiberglass hood - bumper - prostock hood scoop, wishbone trac-link, two chrome moly driveshaft loops, 16 gallon JAZ fuel cell,etc

[This message has been edited by Neal (edited 03-27-2001).]

 

Sorry crab, I tried a search to no avail. I was thinking about that though, since I have the K&N, why not just cut a few holes in the box where the filter sits? Same effect as having it open and you actually get a build in heat shield!
make sense?

------------------
2000 4.2 Supercab XLT
What I've done: K&N filter, Magna flow custom exaust (From where cat's join, 3"in, two 2.5" out the rear), Michelin LTX M/S 265/75/16's, MTX Thunderform custom box with two 6000 series 8" subwoofers and Mtx 120 amp.
Plans: Lund hood deflector, superchip, Poweraid, Xenon sport Flares, (custom ram-air idea?)