they claim they are new billets,as for any info on the gruppe-s will not give any which is a bunch of crap.they are selling a product that they will not ,or do not have any info on. not very good buisness if you ask me . it is kind of like selling a car and when the buyer asks what make is it ,and how many miles are on it? you reply um it is a red car with some miles on it. come on gruppe-s what if there is a problem? and we need some specific info on these. this is by far the worst way to sell a product to buyers. boooo to
gruppe-s ,and don't post up another bogus dyno showing what they do . give up specific numbers. they dyno will not give the builder cam specs.