After reading threads on THOR's, Spectre's, and homebrew cowl air intakes, I was thinking about buildiing my own system. Then, I found that Summit Racing has the Spectre 9948 system for a price ($199.99) that is a lot less than Spectre's direct price ($333.99) and competitive with the price of the THOR system ($175).
http://www.summitracing.com/parts/SPE-9948/
I decided to try the Spectre system and ordered one from Summit a few minutes ago. Their customer service rep verified the price and that this is the kit that fits the XJ. He also said this is an item that they don't stock and so it takes a couple of weeks before its delivered. My delivered price is $211.94. If you are interested in this system the price is probably as good as it gets.
http://www.summitracing.com/parts/SPE-9948/
I decided to try the Spectre system and ordered one from Summit a few minutes ago. Their customer service rep verified the price and that this is the kit that fits the XJ. He also said this is an item that they don't stock and so it takes a couple of weeks before its delivered. My delivered price is $211.94. If you are interested in this system the price is probably as good as it gets.