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DIY Intake - Options(Open, Boxed, and Dual)
Application 99-03 7.3 Turbo Diesel
Early 99 - 4" section of 4" Exhaust Pipe
Late 99-03 - 3" section of 4" exhaust pipe.
1 open element filter from Napa,Part # FIL6637 or try FleetFilter.com Part # 46637.
1 Hose Clamp big enough for a 4.5" application.
A few basic tools like a wratchet, extension, sockets, flathead...
Why do this mod?
The early 99 airbox was notorious for allowing dirt particules to pass into the motor and in worst case senario's resulted in "engine dusting". Engine dusting often results in battered Turbo fins (which can be checked by removing the intake tube) and prematurely scored cylinder walls which ultimately results in lost compression and lost power.
The later airbox models were prone to broken clips which would not allow the top of the filter cover to seat correctly and allowed particles to pass into the engine as well.
Performance wise, the tymar triples the filter surface area, thus allowing more "flow" while maintaining acceptable filtration.
How-To
First, aquire all needed materials which is in this case the filter, 4" pipe, and a hose clamp. Stainless Steel is what I used, but Aluminized or PVC pipe will also work.
Here is a photo of the materials needed...
Next, you need to disconnect the batteries since you will have to later anyway might as well get it out of the way now and leave them disconnected for at least 1 hour. After that you need to remove the stock airbox. Remove the hose clamp that holds the stock tub onto the filter housing cover.
Now remove the 2 bolts in the back of the filter housing and take the hose off the top of the box and now you are down to the filter.
Remove filter.
Here are 2 pictures showing the dirt that got into the intake tube after removing the filter housing lid. You need to clean this out before installing the filter.
and
There are 2 bolts in the bottom of the box that need to be removed. After taking them out, twist the white temperature sensor in place and it should pop out. You can zip tie that out of the way, and it will not throw any codes.
You should now have access to the 2 bolts in front of the airbox that will allow you to remove it.
After the airbox is removed you can see the air temperature sensor. This is what you can just zip tie out of the way.
Application 99-03 7.3 Turbo Diesel
Early 99 - 4" section of 4" Exhaust Pipe
Late 99-03 - 3" section of 4" exhaust pipe.
1 open element filter from Napa,Part # FIL6637 or try FleetFilter.com Part # 46637.
1 Hose Clamp big enough for a 4.5" application.
A few basic tools like a wratchet, extension, sockets, flathead...
Why do this mod?
The early 99 airbox was notorious for allowing dirt particules to pass into the motor and in worst case senario's resulted in "engine dusting". Engine dusting often results in battered Turbo fins (which can be checked by removing the intake tube) and prematurely scored cylinder walls which ultimately results in lost compression and lost power.
The later airbox models were prone to broken clips which would not allow the top of the filter cover to seat correctly and allowed particles to pass into the engine as well.
Performance wise, the tymar triples the filter surface area, thus allowing more "flow" while maintaining acceptable filtration.
How-To
First, aquire all needed materials which is in this case the filter, 4" pipe, and a hose clamp. Stainless Steel is what I used, but Aluminized or PVC pipe will also work.
Here is a photo of the materials needed...
Next, you need to disconnect the batteries since you will have to later anyway might as well get it out of the way now and leave them disconnected for at least 1 hour. After that you need to remove the stock airbox. Remove the hose clamp that holds the stock tub onto the filter housing cover.
Now remove the 2 bolts in the back of the filter housing and take the hose off the top of the box and now you are down to the filter.
Remove filter.
Here are 2 pictures showing the dirt that got into the intake tube after removing the filter housing lid. You need to clean this out before installing the filter.
and
There are 2 bolts in the bottom of the box that need to be removed. After taking them out, twist the white temperature sensor in place and it should pop out. You can zip tie that out of the way, and it will not throw any codes.
You should now have access to the 2 bolts in front of the airbox that will allow you to remove it.
After the airbox is removed you can see the air temperature sensor. This is what you can just zip tie out of the way.
