Ok, so I've purchased the :
1). 3 " ABS pipe.
2). 3" female to female coupling for 3" pipe.
3). 3" or 4" hose clamp.
4). ABS cement

But for the life of me, I went to Home Depot, Rona, Totem, Home Hardware, 3 plumbing distributors and can not find the right FERNCO rubber downspout needed for this mod. What they do have is a Fernco rubber reducer 4" ID to 3" ID. But what is the exact part for the ID that fits over the coupling and the reduced size to fit inside of the opening for the snorkel. We don't have a Lowes store ( One opening up later this year, which doesn't help ). I will have to get a Fernco part # and have one of my plumbing shops order it from the supplier.

The link to Fernco is:

http://www.ferncoconnectors.ca/plumb...tock-couplings

I think Its in the 1056 series. Is anyone familar with the exact measurements.

 

Wacki, the only thing you need is the ABS pipe and the hose clamp. You'll need to do a bit of grinding (a grinder will work well - wish I'd thought of that) on the pipe to shape it to fit inside the fender hole, but that's really all. You do not need the downspout or the couplings at all. Nor do you need any cement.

Please see my "How To" https://www.f150online.com/forums/ar...04-2008-a.html for a "step-by-step" set of instructions.

- Jack

 

I've seen your work and I'm impressed but to shave that pipe into an oval seems more work then its worth. I don't have a sander and by hand would be too painful. I figured a couple of extra parts for a few dollars is worth more then the time it would take me to do it 3 or 4 times to get it exact. How long did it take you?

 

I did it the J&J way and it was super easy! I dont have to worry about any ruber parts getting sucked in. just shape the pipe its no big deal. I used a grinder and I was done in half an hour. All I need to do is paint it. I've had it for almost a week now and it rocks. I got a best of 16.9 APGs. Thanks Jack&Janet!

 

I made a couple of trips to my local home depot, rona, and canadian tire stores and could not find anything like the downspout adapter shown for the DWV mod at any of those stores. I decided to take the same approach as JackandJanet and used my orbital sander. I test fit it a couple of times while i shaped it and it turned out very well. I did it just this morning in about an hour with running to the house now and then to check on my kids. Very easy to do with some patience and i installed a K&N high flow filter with it. It feels like it has more get up and go, and under WOT it sounds a little meaner. I think if you could ever see using a sander or a grinder for anything it would be worth the purchase to try this modification.

 

It really wasn't hard at all. Probably took about a half hour. It would have been faster with a grinder, but it would have taken more care.

- Jack

 

Haven't been around much lately, still debating on which route I'll take. But in the end I think, the sanding the pipe is your better option. This might be a little minuscule, but there won't be any turbulance or friction drag on the air coming in on the sanded version as oppossed to the coupling configuration.

 

I need to re-read some of those posts about this because I want to do this but couldnt remember if you could paint the PVC good enough to get a good shine on it. I have the parts and will try to get it done this week.