Thinking of doing the gruppe-s manifold, but wondering if the jet coat is worth it..
Gruppe-s says
"eliminates heat loss thus virtually eliminating low end power loss (compared to stock headers).* Includes all necessary gaskets.*"

so does this mean that it would eliminate some of the low end power loss associated with the non coated manifold??

My set up- scooby sport dp, vishnu up, greddy evo.. catless.. vishnu chip and tuned,forge div, intercooler hoses.

Thanks

oh and any personal experience about either header would be appreciated...