stock manifold with plenum lid cut off and a plate welded on twin stock throttle bodys and the rest is all hand rolled cones etc to make it all fit our alloy guy did well there turned out great look like 2 stroke motorbike expansion chamber exhausts LOL.just need to setup the meth injectors right after the turbos now they are spraying on an angle towards the TB' from as close to the turbos as we can hopefully its enough cooling for a start at 14psi