So, there's a seller on eBay that is selling the China 7cm turbine housings for td05 turbos. I had initially bought one for my compound set-up a couple years ago. And I was very happy with it. Quality and fit were spot on, and the price was great too.
Fast forward to a few days ago. I bought another one for the 14b on my DD. I made an offer of about $13 less than the eBay auction was for, and they accepted. I received the turbine housing about a week later, and it was a completely different experience than the first one.
This housing had several casting flaws - the largest being inside the volute. Poor machining and rough cast on the O2 housing flange. And, worst of all, the inlet and bolt pattern are horribly flawed. This housings isn't even usable if I were able to get past the basic flaws.
Large casting flaws inside the volute:
Rough cast on the O2 housing flange:
Here's a shot of a new OEM 7cm gasket bolted up to this housing. Not only do the bolt holes not even line up, but the inlet is horribly off center:
My take -
These don't all suck, because I have already received a good one from the same seller in the past. So, it's a gamble at best. Although, I must also mention that during the transit time, I received 2 e-mails from this company stating their "Warranty & Guarantee". Kind of ironic that they emphasize warranty so heavily when I receive the defective housing, but there was no mention of it at all the first time around when I received the good one. It almost makes me wonder if they purposefully sent me a 'blem' or blemished housing in hopes that I wouldn't notice. In either event, I'll be requesting a full refund for this hunk of junk.
The eBay seller goes by the name "carbon_innovation" out of California. The title for the auction is consistently "DSM ECLIPSE 16G TD05H 7MC2 TURBINE HOUSING TURBO".