Blow Off Valve KIT
A real atmospheric BOV for the M157, which the factory never gave it.
In stock · ships from DTK Motorsports
M157 Blow-Off Valve Kit
The factory M157 turbo system does not use a true blow-off valve, instead recirculating excess boost back into the turbos when lifting off the throttle. This can slow turbo response and increase long-term turbo wear, especially on tuned vehicles.
The DTK M157 Blow-Off Valve Kit uses a vacuum-operated mechanical BOV to vent excess boost safely into the atmosphere, protecting the turbochargers and improving throttle response between shifts.
In addition to the performance benefit, the system delivers a crisp, proper turbo sound under lift-off.
Finish it with D.R.P
Matched to M157by engine code. Confirm fitment against your chassis before ordering — message us if you're unsure.
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