EXHAUST MANIFOLD COMPARISON

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The following photos are of two different manifolds showing the poor quality and difference in size of random manifolds .

They are untouched and as they came from the factory !!

These show the difference in size on the exhaust manifolds ;

Bigger the better !!!

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Photo below is showing just one of the port sizes on the smaller port manifold

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Photo below is showing just one of the port sizes on the larger port manifold

Both measurements are just rough ones and the carbon was still in the ports .

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