Product Code: SP-BM54AH
Availability: In Stock


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***This item is out of stock until mid-November.

This harness helps you activate your second fuel pump with a manifold boost reference. Our harness gets boost reference directly from the manifold and is not affected by charge pipe throttle closure pressure spikes like other designs. Also, this harness is a complete trunk mount setup and does not require any wiring to be routed to the engine bay. Includes detailed easy to follow install instructions.

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Tags: 135i, 335i, N54