The TBS does not provide any real performance gains in itself so unless you are tapping it for spray or need it for the CAI fitment then i would disregard that mod.
Here are some sites that i use for mods on the performance side.
Forum Classifieds and Vendors
(there has been some custom service issues so i would call them in advance for further details)
I am sure plenty will follow through with their suggestions and valuable input.