Quote:
Originally Posted by Volvorama
You have the B20B manifold with the secondary butterflies. Consider getting a late B18 manifold with twin downpipes but without the nasty emission control stuff. This reduces the chances of air leaks and it'll run much better. It's pretty much a straight swap.
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Thanks, yes I was looking at that yesterday.
If I want to keep it looking original, but running better, could I just remove the secondary butterflies from inside the manifold?
John