calis101 wrote:Any word on if theres anything to gain from a porting the manifold? I assume the ceramic takes care of the polishing?
anthony kemp wrote:has anyone seen a steam pipe manifold made for the D4D. there is heaps of room on that side of the bay so wouldnt be hard to make and i think there would be some performance gains over a cast manifold.
BIGFOOTJR wrote:I have ceramic coated my exhaust, double coat on the down pipe and single coat on the CAT to tip. Yes it does help to prevent rust and have seen noticeable increase in lowering EGT however if you don't plan on running a chip or upgrading the turbo then I see no need to ceramic coat the exhaust or manifold.
If anything it won't help the engine run cooler, it will just help cooling the turbo down quicker before shut down.
Hope that helps.
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