Which one is a better intake to purchase. I am seeing a lot of good things about both yet it seems more people lean toward injen meanwhile the typhoon's specs are just as good. Which intake will provide you with larger HP boost and/or gas mileage gain on my 06 ss supercharged. Everything else is stock. Any help is appreciated b4 i purchased this.

I also found the cheapest is 240 dollars off of autoanything.net... it estimates the injen at a 16.9 hp gain with a 15.5 torque gain. Anyone know where they get this numbers and if they are accurate at all?