Yeah, I bought one ( SPECTRE) and I can tell you ..it's GARBAGE.
The intake temperature has raised with 3-4 degrees C.
The torque loss it's sooo evident. Changed back to stock air box .
I felt the same way as you ....buying the first one cheap....money out of the window....lol
Went with a K&M CAI, noticed maybe a small amount of HP but nothing overly great, not sure of the Running Temp but after two weeks it ended of getting a hairline crack around the mounting bolt...so in addition the crack, i read if you live in a rainy state that you might encounter the filter sucking water/road oils and taking the chance of problems occurring, so decided to return the CAI and just stick with the stock for now