6637 intake tube

[simco6]

I can't find any 4" exhaust tubing what else can you use

[tfifeco]

YOu can use a PVC plumbing 45 degree elbow. 3" or 4" depending on thickness. Some people have used 4" Street elbows. i had to use a 3" flanged elbow to make it work. Just go to a local harware store and match up the size as close as you can. Had to use a little black tape to get a better seal.

[majek5]

I bought a 4" Aluminum 45* off ebay and cut it down to length.
http://www.ebay.com/itm/4-45-Deg-Pol...item1c2483d603
Just one I found.

[Bleedin Blue]

I had Stainless Steel Headers in Fargo,ND make mine. Took a pc of 45 degree mandrel bent 4 inch and cut the straight end off one side and welded it to the other. Cost me $25 and looks killer. They are nice people. They can make pretty much anything you want.

Stainlessheaders.com

[bruce51d]

just buy an exhaust, its a good investment anyway

[350factor]

Could large conduit work? I just did the same 6637 mod and would like to see the same what the original poster is looking for. I'd like to see a cleaner look than utilizing the stock intake. By the way this is a wonderful site.

[ttyR2]

You don't have a single muffler shop anywhere near? They'd have the pipe.

[hotairgypsy]

i am doing the same thing and considering the PVC route myself

[CHUCK]

I used 4" PVC, 45*

[Wannabitawerm]

Kegs has 4" pipe for $23


Wishin I was fishin.