and it adds up to 100hp!!!!!!! its AMAZING....just call up xs engineering and ask for their snail. they will know exactly what you're tlaking about. what it does the snail sits on top of the engine and when it hits a certain rpms it comes out and enables vvti!!! but here's the thing! you can make it enter vvti early so that your car will go faster!!!! do it today!! all for a low cost of...7k email me for more info guys!