So its been awhile since I've needed to order a dual wall pipe. Now that Tam is out of business..(or so I heard). Where are you guys shopping.
I need a pipe for a 100n engine... however I also need it to be slightly smaller than the off the shelf sizes that you would get at Grumania. By that I mean they offer one pipe for 100n to 160N. Well I'm pretty sure if its good for a 160n then its way larger in diameter than is needed for a 100n.
Ideally I would like the outer pipe dia to be around 85mm or smaller if possible. I already have one that is 90mm.. but its tight

So.. What's a SMALL dia pipe that will work with a 100 and where to get it.

Thanks!