GM Duramax HSP S400 Cold Air Intake

HSP Diesel

The HSP S400 Cold Air Intake will improve horsepower, torque, and work with upgraded S400 series turbo's in the valley.

The S400 intake is built out of 5" tubing. Construction is based off of our HSP 7" pedestal, but will work with other applications.

Please call to verify fitment.

Increases will vary dependent upon vehicle, current modifications, and tuning.

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