Is a name brand CAI worth $100+ over this ebay one?

Honestly they all the same unless you have vents on the hood and get a RAI. The ebay ones are ok but they don't stay shiny at all as the BBC or MAC CAI. I fyou want some shiny intake go for the name brand. BTW i have a MAC here for sale in the classifieds. I switched from a CAI to a RAI from steeda because of my stalker hood vents.
 
From JLT's site

"2002 GT

Automatic Transmisson

Full Exhaust

Pulleys

MAC CAI and Chip

Test was done same day and at the same time. JLT vs. MAC CAI

Gains of 10 RWHP and 10-12 RWTQ were seen on this test.

These gains were made over the MAC intake!!
"



They have dyno sheets to show it too. On a stock 03 GT 15-20 HP was seen from 5200-5500 RPM
 
I tried one of the el cheapo ones on eBay... You get what you pay for. No Instructions, not that they were needed but still, fitment was not exact which made it a pain in the ... to install and overall made no performance difference because the chrome got so hot that you could hardly touch it. Overall, I wouldn't recommend one. After all once you pay for the Intake plus shipping it comes out to be $50 or more anyway... Worth the extra $50 to $75 for Name brand.