Expanding intake manifolds is important when you want to add power to your engine. If you seriously want to enlarge the intake elements, you will have problems because they have to be enlarged, there is not enough material to enlarge them further. These "Big Beef" intake manifolds have much more material on the bottom, so the manifolds can be as large as the intake ports.
Delivered in pairs (assembly material and seals included).
Only suitable for dual intake type 1 engines (there are two intake ducts per cylinder head).
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