99.5+ airbox Will fit early 99 models

[DENALI]

I had asked in the general forum about if a 99.5+ model air cleaner assembly would work in our early 99 trucks. Everyone told me no. Well i just wanted to leave a message for future people to let them know that indeed the 99.5+ units will bolt directly into our early trucks without any modifications whatsoever, I just did the swap in about 10 minutes. Thanks

[JJR]

I did it in mine and it bolted right in but I had to get the rubber elbow tube that connects to the newer box. Running diy tymar now though.

[D99]

Thanks for the info!

From what I've read throughout posts is that the AIS and AFE will work in our early 99's.
The AIS, will likely be my first mod for the truck. Not bad for around $250ish.

[alabamafrog]

Why on earth would anyone want to do such a thing? The factory air boxes on the e99 AND the 99.5-03 trucks all leak dust and do not flow enough clean air. Everyone I have opened up an looked at had at least some signs of dust trials and some wear on the turbo impeller. The DIY intake costs around $40 to do and takes about 10 minutes, rebuilding a dusted engine can cost anywhere from $4,000 - $12,000.

[DENALI]

Originally Posted by alabamafrog

Why on earth would anyone want to do such a thing? The factory air boxes on the e99 AND the 99.5-03 trucks all leak dust and do not flow enough clean air. Everyone I have opened up an looked at had at least some signs of dust trials and some wear on the turbo impeller. The DIY intake costs around $40 to do and takes about 10 minutes, rebuilding a dusted engine can cost anywhere from $4,000 - $12,000.

In my case the early 99 had a Aftermarket Ford extreme duty air cleaner installed and i wanted to keep it since i am selling the truck. I am keeping my 2000 so i switched them. So thats my "why on earth would i do it" reason.

[Degnol]

I just installed the Ford AIS in my E99 and did have to mod it a bit. I have a Banks Intercooler and the tubes are larger I guess so I had to trim a little off the plenum to get it to fit. Folded back the rubber sheet that blocks off the side of the radiator and it now draws from the grille. I did look at the compressor wheel and all looked fine, but my truck has only 48K on it

[7.3_pwr_strokin]

I am curious to know if the S&B intake would fit our trucks? I believe you need the extra rubber elbow from the AIS in order to make the conversion easy...maybe thats why it dropped right in. I've heard some people say they work and some that they don't. I requested a drawing of S&B's intake from there engineer in order to find out for myself. The DIY is great and all and I have it now but not having anywhere for the Air Flow Sensor is killing me and causing my truck to sputter sometimes in the rain apparently.

[alabamafrog]

Hmmm, I doubt the problem is your air flow sensor since there is no such thing.

[7.3_pwr_strokin]

air temp my bad.

[alabamafrog]

Sorry, couldn’t help myself.
Most folks just tie the temp sensor to something out of the way but near the filter. It should still measure the air temp accurately since the air around the filter and the air in the intake tube should be the same temp unless something very strange is going on.
However I have seen folks drill the PVC elbow and install both the temp sensor and the restriction indicator into the PVC elbow. I’m too lazy for all that though.