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Hey all i just bought a greddy copy manifold, starting to regret it already and i havent even put it on the car :)

few things im unsure of,

1. The water outlet from the manifold to the radiator is just a loose peice of round steel not sure whats its made from but not sure how its ment to stay in the manifold, it wouldnt press in.

2. Few of the fittings wont screw in, id have to clean up the screw holes abit.

My brother said something about pushing some sort of foam/liquid/goe cant remember exactly but you push it threw the manifold and it makes it smooth and cleans most the small imperfections out of the inside.

anyone have any more info on it? i can search as i dunno what its called id be searching for.

cheers

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