go to killertc.com, they have an injen CAI for the 07 tC, and they have the cheapest prices you'll find on performance parts for the tC allbeit not a HUGE selection, but good for what you need. they arn't that hard to install, just have to make sure you take the front bumper off, i tried to get around it but you can't route the second peice of the pipe up through the wheel well without doing it unfortuneatly. it also can be converted to a short-ram. so there ya go
