I got my manifold on ebay, the fwd version with the q45 throttle body for 410 to my door. The gains on my t3 were easily noticable. My everyday boost level of 20psi felt like 24psi before on the stock intake manifold and throttle body.
As for quality. There were minor issues but at the end of the day it worked just fine. I had to clean up the weld at the stock runners some as there was a nasty lip in there. Easy enough with a metal cutting bit and a drill. The other was the clearance of the driver side bolt on the intake manifold that is really long on the highports. Easy enough as well. Other than that the gains were there. It still looks good, has velocity stacks, a good size volume plenum that clears the firewall just fine, retained the factory idle air control valve with some modifications and the welds and construction are pretty good as they have stood up to 30psi on the t67 H.O. I know its better than a stock manifold and throttle body thats for sure. Almost anything and ive seen some crappy looking manifolds get dyno tested in the past 10 years and all of them with a good size throttle body usually Q45 dyno 25-35whp more than the stock on a t3 turbo. Some made 20 on t25's and t28's.
So the key to this community is the price tag and as long as it looks nice and is made well and has a good plenum volume, clears the firewall and other stuff, and retains idle air control, is the key to selling well in our community. Hell I many not have bought an o2 induction manifold or some other $1000 manifold but it does the job and it kept all that stuff i mentioned.
PS: Raised velocity stacks to not cause a hinderance in the plenum. Thats not how air flow in there works. lol.
Pics of mine
Installed w/ topfeed rail
Installed w/ side feed fuel rail