Originally Posted by El Fufi
They say that 7/8" headers are harder to fit and that unless you're doing big whp they wont make a difference.
I can understand that it may be more difficult to install, but really on these 5.0's you have to lift the motor slightly anyways, once that happens it shouldn't be too difficult at that point right? I am under the impression that the larger the system, the more volume of flow, and when I couple the 90mm TB and the 1 7/8" headers with the Boss Intake Manifold and eventually more aggressive cams, that the larger size would be more beneficial. I have been reading that Forced Induction is the only reason to go that big on either, but N/A engines need to breathe properly as well and why limit yourself, especially if I do get a procharger in another year or so.....