Hi, I am in the market of picking a header and I came down to FI header or PPE header. I see both offers Long Tube Header, and I would like to know which one has a higher gain or HP and which one seems to be louder. Hoping someone who owned one can give me some opinion on these headers or if there are other headers that can gain more HP. My current set up is stock header and cat, Tomei Y pipe and Amuse exhaust. It’s too quiet for me taste, but most importantly I am looking for something to gain more HP. Thanks for all inputs!
PS: i'm getting the topgunz A2A supercharger kit as well, so engine work is needed to be performed might as well install a header while working on it.