pin hole in manifold

[doddze]

just noticed a small pin hole in one of my manifolds just on the weld where the three pipes join.... replacing them is not an option at the moment as I have just had the rest of the exhaust done..and I'm skint

Would I be right in thinking metal filler is no good as it is only good for 250 degrees C?

And I guess welding wouild mean taking the manifold off? which I'm not doing either:nono: