You never need to replace the air filter again!
This works with Fords, Lincolns, Mercurys, BMWs, Chevrolets, and most others.
Now the average added HP is 7-12 HP, but you may gain more or less depending on your car or truck.
If you want to do this on the cheap, I recommend Spectre Performance Parts.
( http://www.spectreperformance.com/#HOME )
If you want to go all the way and pimp your car out, go with K&N parts.
( http://www.knfilters.com/ )
This is my first Instructable, so go easy. :)
I'm not responsible for any damage you do to your car or to yourself.
Step 1: Measure Your Intake
Use a ruler, or ask a professional what size your intake is.
Get parts in your intake size.
Step 2: Buy the Parts and Tools
Here's what you need:
-Multi intake size or direct size cotton media cone filter. (Don't get a steel media filter!!!!)
-Universal-MAF sensor housing, in your intake size, (If needed).
-Square to round-MAF sensor housing-adapter, (only needed with old BMWs).
-Phillips, flathead, and hex screwdrivers. ( You may need more or less tools depending on your vehicle.)
Step 3: Remove the old Air Box, Intake, and MAF Sensor Housing
--Start by removing your MAF sensor.
To do this, unplug the cable coming from the MAF.
Unscrew the 2-4 screws on the MAF, lift it out of its housing very carefully!!!!!!!
Then set it on the cloth with the sensor facing up, in a safe place.
DO NOT TOUCH THE TINY WIRES ON THE SENSOR UNLESS YOU WANT TO SPEND $150 ON A NEW ONE!
--Next remove the MAF housing from the filter box and intake tube.
Do this by unscrewing the 4 screws, attaching the MAF housing to the filter box, then remove it.
Untighten the clamp on the intake tube and slide the tube off the MAF housing.
--Next remove the filter box.
Do this by taking the top off the filter box and lifting out the filter.
There should be some screws on the bottom and/or sides of the filter box,-remove them,
then remove the filter box.