It is very disappointing to deal with AGENCY POWER. I had purchased the F430 manifold from agency power after speaking with the marketing manager/saleperson Luis. He told me the Manifold would work with the F430 Scuderia and they also have an exhaust which is titanium that goes with it . (implying that the manifold fits the scuderia). Then i called them during the time of install and asked them for new gaskets for the headers. He said he can get that. After a day or 2 ; he calls back and says sorry you have to use your original ones. During that conversation i said its for the F430 Scuderia again. ( Never once told me the Headers would NOT fit the F430 Scuderia) I called them back and told them the Manifolds dont FIT the F430 Scuderia due to an additional port system on the Scuds Manifold. I'd like a refund. Luis (marketing manager/saleman/many roles) in the company said he will have to ask his boss the director. After a week or so i never got an answer. I was being quite patient with them. I understand that VIVID RACING owns Agency Power; But Agency Powers Customer Service is Terrible compared to Vivid Racing. I spoke a person name James. I am sure you guys heard of him on this forum. This man is a Great Guy. I purchased a Kressieg Exhaust system with James ( vivid Racing) and Spent over $12,500 on an exhaust system for the Scuderia. I am not blaming James for anything here because he actually tried to help me solve the issue. Agency wanted to make it sound like its my fault for ordering the wrong manifold when i specifically told them its for the F430 Scuderia. I mean when i called them numerous times i asked ( do you have an manifold for the F430 Scuderia?) Answer : Yes. we can have it coated for you too. ( thats implying it fits for the Scuderia. Agency Powers website should tell people that the Headers dont fit the Scuderia. It is very misleading . I want to thank James for the help, but i am very pissed off at Agency Power and i will NEVER do Business with them again. Bad Business and unreliable workers. People warned me already not to deal with Agency Power; but i tried to give them a chance. Now i know how they are.