Seller notes

BMW Three 3 Stage Intake Manifold DISA 330i 130i N52 N51 E90 E60 128i 328i 325i A 3-stage manifold consisted of 2 DISA valves that would divert air to the cylinders that needed it. With more air going to the appropriate cylinders and fuel adjustments by the ecu, this valve system helps extract the most power from the N52. Up to 30HP with just a simple upgrade of the intake manifold listed here! With the two DISAs, air is allowed into the intake based on the requirement of power or econ. OVERAL...

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