Next bit.

Now that the intercooler was fitted, I could start again on getting more power out of the engine, so the next step was to fit a tubular manifold. The standard ford item is pretty restrictive and can free a lot of torque when replaced.

Standard item...



There are a few people making tubular manifolds for the focus rs, however Primary Designs have to be the best with a history of producing exhausts for F1 and WRC teams, i decided on an inconel ceramic coated tubular manifold, not the cheapest but you get what you pay for.



I decided that it would be easier to remove both the manifold and the turbo at the same time, as the manifold to turbo bolts can shear quite easily and the turbo needed to be sent away for modification anyway. Easier to do it all now than have to remove the turbo later for upgrade.



The manifold was wrapped in bubble wrap (to stop it getting dirty) and fitted to the head with a ferriday thermal exhaust plate which is supposed to keep the temperatures down in the head. The plate came with studs and K-nuts which made fitting the manifold easier as there is not a lot of space to get tools into, to tighten the head nuts.