MBH Motorsports VTA (vent to atmosphere) diverter valves allow you to vent excess air to the outside from your turbos when the throttle is closed. Rather than recirculate this air back into the air intake. In turn these valves will give you the turbo "blow off valve sound" that many turbo enthusiasts enjoy. Install is very quick and can be done in your driveway. Each valve is anodized black to a factory style finish. These valves will have no adverse effect on your car and will not give you any trouble codes.
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