The BD-Power 1043916 Up-Pipe Kit eliminates common issues with the exhaust Up-Pipes in your 2003-2007 Ford 6.0L Powerstroke. Featuring a ductile cast iron y-pipe design, this kit is designed for a perfect bolt-on fit with your stock or BD-Power Exhaust Manifolds. Turbo Manifold Designs A look at log, tubular, and twin-scroll manifolds. Contributed by: Enginebasics.com. When it comes to turbo manifold design there is actually a lot more to it then just connecting all of the exhaust ports together to feed the turbo.

Jan 25, 2008 · Exhaust Tuning Theory and System Design Weve all heard the magazines talk about back pressure (and most of what they say is utter cac) so how do we ensure we have a good, efficient, exhaust system (bearing in mind that back pressure, any back pressure, is a bad thing)?