Novarossi .21 on-road conical manifolds

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Novarossi have introduced three new conical manifolds for .21 on-road engines. These conical manifolds are designed to improve power and fuel consumption. The long manifold (41013L) offers more acceleration, the short (41013S) one gives more high speed while the straight manifold (41014) offers even more power.

Source: Novarossi