I'm curious if anyone has ever bought one of these ebay intake manifolds before. It seems like they are high quality but not sure. They seem like exact copies of the name brand manifolds and claim high quality. It makes sense too considering that what you pay for with many of the more expensive name brand models is the name. Any input would be appreciated.

also what realistic gains have you noticed. i have an sr with a turbo that flows a little bit more than an s15 t-28. Thanks in advance for everyone's input.