There is so much crap posted on the US section it's comical.
All independant dynos report zero or minimal power gains with this cosmetic jewellery. Once you understand how the induction works on the S65 who will realise how the stock part is not a limiting factor or bottle neck.
I'm sorry to have to tell you that this product is for bling only.
Any buyer expecting gains as you have posted will be utterly dissappointed.