eBay Exhaust manifold

[yahh]

I ordered one yesterday for my s50 swap e30 and I'm wondering what size the collectors are so I can order a y pipe for it. I'm guessing 2.5"?


This is the one I ordered.

http://item.mobileweb.ebay.com/viewitem?itemId=180785713204&cmd=VIDESC

[MaxBell]

Your listing says outlet is 1.75"?

[yahh]

I saw that, not sure if it's right though. That's usually the runner size. I was confused because it says In and out 1.75.

[Boise]

Mine was a little under 2" OD, and I used a 2" y-pipe and it worked fine

[yahh]

Thanks