Well here it is, I have received many emails regarding these Intercoolers and I've seen a few posts here. Seems appropriate to do a full review, and let everyone know how these perform.
This thread will mainly focus on the review of the intercoolers and comparison to stock and other name brand.
This is NOT a write up on how to remove and install Intercoolers. If you are looking for that follow this link
[ http://www.ttzd.com/tech/ictech.html ]I purchased the intercoolers directly from this company on ebay
[ http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&ru=http%3A%2F%2Fsearch.ebay.com%3A80%2Fsearch%2Fsearch.dll%3Fcgiurl%3Dhttp%253A%252F%252Fcgi.ebay.com%252Fws%252F%26fkr%3D1%26from%3DR8%26satitle%3D200023538404%26category0%3D%26fvi%3D1&item=200023538404 ] Seller responded promptly to emails, intercoolers arrived fast and were well packaged. I've included a data table in this post, that I believe shows most important attributes for intercooler review. There are many pictures showing before & after, and comparison between Intercoolers. 
Some pictures of stock set up.
The only reason I'm including this picture is to warn people when installing intercoolers. Be careful around this washer pump.
Some out of box pictures of new IC
These brackets may not be included in other kits.
 Here is the picture of the problem on pass.IC. This will be corrected for future Intercooler kits. See explanation below.
 Test fitting the intercooler ducts..
 They fit!
 Driver side done, all stock bolts and brackets. Just have to reinstall the duct.
 Some comparison stock vs. ebay
 installed
 As you can see, intercoolers are fully aluminum, the fitment is great and we get to keep the stock IC ducts. The Intercoolers come with the hardware kit which is really not necessary, but can be used if desired. I've decided to use stock bolts since they are slightly longer and seem to be of higher grade then the ones included, really not a problem. The installation went as expected, no surprises. The only problem with the Intercoolers I encountered was the passenger side outlet had to be slightly grinded on the inside due to aluminum residue on the welds. It takes 10seconds to fix using rotary tool or other grinder. This will NOT be a problem in other IC sets, since this was the first batch. I contacted the seller and they will polish the inlets and outlets of both Intercoolers. The ebay add advertises that IC will efficiently support up to 500hp, which I believe is true. I was really impressed when I took the car on the highway, the acceleration difference is unbelievable, especially after 4krpm. Though my car is somewhat moded, I don’t know how it might perform with stock exhaust setup. It’s been 70degrees outside this past week, so temperature has not changed much. These IC are really a noticeable improvement over stock, well worth the money. If I had to guess I would say anywhere from 10-25hp increase depending on your other mods. For those with stock turbos or Sport500 turbos, these IC will be more then enough.
I still have not received temp info on the IC, but hopefully I can do some measurements myself if nothing else. Again this post is strictly to inform members of tt.net and others of these intercoolers, and to provide data about them. I won’t go into rant about Stillen or HKS for highly overpriced aluminum welding. :) I personally think they are worth the money, and if you don't plan to get crazy with mods these are for you.
If you are interested in buying these intercoolers please email me or reply here that you are interested and I will email you. If we have 10 people or more interested in buying, I can set up a group buy for a flat price of $370 shipped to 48 states.
He also has aluminum boost hoses for sale, I think he said $100 shipped if people are interested. I don’t have these, so I have no idea on fitment and finish.
Here is the link for them
[ http://cgi.ebay.com/ebaymotors/TURBO-INTERCOOLER-PIPING-KIT-90-96-300ZX-FAIRLADY-Z32_W0QQcmdZViewItemQQcategoryZ33742QQihZ010QQitemZ20002540599 ]
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Ebay Intercoolers Review (picture heavy) - 
