There are no performance chips that add that much HP...you will need a custom tune, which will give you some HP....nothing out there is going to give you that much short of a lot of engine work..so, yes, it is snake oil....Eurocharged can help with a tune....Sprint Booster for faster throttle response, no HP gain, CAI for 5-10 HP gain...but after that, you need to look at injectors, fuel, etc