Thread: Make A 4" Fenderwell Intake (FWI)[*]

04+ cant do 4" by the way... you have to do 3" to match the maf.. otherwards you throw all kinds-a-codes

Originally Posted by tjvdubsport

on my setup , i did not cut the inner fender brace cause i used a conical air filter which is about 4 inches high part number 8162 from Spectre , they sell it at Autozone and it fits just perfect . instead of the 4 inch tubing i used 3 inch . i know that 4 inch is bigger and has a better flow , but a 3 inch is smaller and consecuently faster air flow , my FWI intake roars very fukng loud

Nicely done!! Where did you get those 3" pipes with the angles from?

Originally Posted by Lion29GTP

Nicely done!! Where did you get those 3" pipes with the angles from?

the pipes and bends are from Autozone ... the pipe is aluminum and the bends are plastic

Originally Posted by gotboost3

heres mine works great

what angle PVC fitting coming off the throttle body do you have here?

Originally Posted by tjvdubsport

on my setup , i did not cut the inner fender brace cause i used a conical air filter which is about 4 inches high part number 8162 from Spectre , they sell it at Autozone and it fits just perfect . instead of the 4 inch tubing i used 3 inch . i know that 4 inch is bigger and has a better flow , but a 3 inch is smaller and consecuently faster air flow , my FWI intake roars very fukng loud

This is a totally nice setup you have here. I have a question. I cannot do a similar setup on my 98 gtp cause it seems the body have a weird part right in the way, this is a part of the frame, directly... So I would have to put the filter in front of that piece, which brings us just behind and a bit under the left headlights.

I can take pictures to explain what I mean, but to my point of view, that setup would have a huge amount of water on rainy days. I refer to the pictures on the first page, the red filter is where I could put it...

Is there a workaround for this? After checking some ppl FWI pages, the only idea that I have is to put 3/4 of the filter in the engine and the last 1/4 in the fender well. I really can't get more in it because of that weird frame piece...

For now, I have a ram air intake :|

Oh, and by the way, what a weid sound it gives with the supercharge!!! It sounds like a sky rocket. That's funny, but not really a nice sound!

Thanks for any input!

Originally Posted by ricke666

This is a totally nice setup you have here. I have a question. I cannot do a similar setup on my 98 gtp cause it seems the body have a weird part right in the way, this is a part of the frame, directly... So I would have to put the filter in front of that piece, which brings us just behind and a bit under the left headlights.

I can take pictures to explain what I mean, but to my point of view, that setup would have a huge amount of water on rainy days. I refer to the pictures on the first page, the red filter is where I could put it...

Is there a workaround for this? After checking some ppl FWI pages, the only idea that I have is to put 3/4 of the filter in the engine and the last 1/4 in the fender well. I really can't get more in it because of that weird frame piece...

For now, I have a ram air intake :|

Oh, and by the way, what a weid sound it gives with the supercharge!!! It sounds like a sky rocket. That's funny, but not really a nice sound!

Thanks for any input!

you could cut the fender brace or get another filter like the one i bought in the pics. i dont have problems with water getting in unless you drive through 2 feet of water

Hi, the idea of cutting the piece seems good. I tought it was some sort of important part of the frame! Just to be sure, I include a pic where I spot the place where the metal piece sits. It is exactly where the filter is.

If I can remove this piece, I am sure the filter won't get any water at all.

Does everyone has that metal piece by the way?

you mean that white cross section right on the other side of your filter in the back there? yes, i am in the process of trimming that out. dont use tin snips...takes way too long, believe me! your hands will thank you as well. just use a dremel or cut off tool if you can. its in the way for a lot of people, and just snip it out. if not that piece, i have no idea...

After doing my intake I found that the instructions were lacking a few details. Here are some things that may make it easier to make the intake.

1. I used white lithium grease to help the PVC pipe fit onto the rubber elbows.
2. A 1/2 inch drill bit works perfect for making the hole in the intake that air sensor plugs into.
3. When I got my PVC pipe I could only get it in a 10 foot length. I got mine at Men@rds and even though it was 10 feet in length it was still only $7.00.
4. I used a 12" conical air filter so I had to modify the instructions slightly. 14" for the longest piece, two 45 degree elbows, and a second 3 inch section.

I hope this helps anyone else who is thinking of doing this. With this communities help and little elbow grease its amazing what you can do.

The stock airbox gets its air from behind the headlight. if you take off the headlight you can see the hole. And if you just drop in a K&N filter, you still have the silencing effect of the airbox, and i think the airflow would still be more restricted than this method. Trust me, you will love the sound that comes from this. And im pretty sure you dont need to adjust your PCM, as long as you still have the air sensor in you should be good.

???????? Am I the only one who has the problem if the coolant overflow being right where the filter goes through??? What am i supposed to do with the overflow??? Any ideas???