The GrimmSpeed BCS is designed to work with your factory computer (requires tuning). It plugs in and requires no splicing or soldering. With the included bracket you can bolt it in, plug in the connector, and start tuning for fast boost response, increased boost pressure and free up lots of power.
The GrimmSpeed BCS is designed to work with your factory computer (requires tuning). It plugs in and requires no splicing or soldering. With the included bracket you can bolt it in, plug in the connector, and start tuning fo...
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