i'm not sure who the seller is, so i cant tell if the purchase was legit. I briefly looked through my previous CA sales, and could not find anything regarding an intercooler but that doesnt necessarily mean he never got anything from us. I advertise 40+hp which is a bit more realistic. Obvioulsy some will gain a small amount while others will benefit tremendously, especially those who drive hard on the street. I would have to imagine you would need to run 20psi with no intercooler to get 100hp just by adding the a/a.
I'm not sure what the deal on the piping was. His auction description was a bit fishy. Originally we sold a couple kits with bare mild steel piping to keep the cost down. We got some feedback that our customers were not liking the finish, so we then made them standard with silver powdercoated pipes and sand blasted the insides out. After seeing some a/a product reviews it seemed like many still did not like the steel piping and preferred aluminum piping. So we then made aluminum piping standard with bead rolled lips. Each time the price has gone up, due to our cost going up but now we have probably the best bolt on intercooler for the syty.
As always you should check with a sellers feedback and auction history, or feel free to ask me any questions regarding the sale if you have any questions. I did have a few people email me to ask if it was legit, and i gave them honest answers (which probably didnt help much in this case b/c i had no real info)