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In my case I had two three branch exhaust manifolds done for £300.00 and did not bother with the heat shields as figured they were not required any more.
Under bonnet temps reduced dramatically, more heat into turbo and therefore more work energy available and the finish is superb and lasts for me for 3 years so far.
 

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I had mine done with the heat shields done too, engine bay temps seem better but that's me just judging how it feels when i pop the bonnet after a good run, i did have issues before with my old turbos struggling with the heat, but touch wood these have been fine, maybe the coating has helped. I know the GTROC do a members discount which i used to get mine done, it wasn't cheap but then I had quite a bit done.

 

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Discussion Starter · #9 ·
I had mine done before deciding to go single turbo route, and have sat on the shelf Since.
Can't quite remember exact cost but wasn't cheap.



Did I mention they are for sale.
They look good mate, Thanks, but I already have heat shields and manifolds :)

Something else I am looking into is getting some parts of the valvetrain DLC coated. Just an idea at the moment but will be discussing this with my engine builder.
 

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Would this "crack" stainless steel exhaust manifold?
Some people say that the heat build up will get too hot for the manifold.

Just wondering if there are any truth to that, as after all... we have road cars that need to last for years, F1 have Inconel manifold that only need to last a few race.

Jerrick
 
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