Zoom icon Click to expand Tap to zoom Chevron down icon Chevron down icon MAP Clamper by Turbo-Spec.com Save $-120.99 $120.99 | / 1 2 3 4 5 6 7 8 9 10+ Quantity Chevron down icon Quantity Add to cart Spinner icon Notify me when back in stock Email address Email me when available Used to freeze the stock MAP / MAF signal when it reaches a certain value, preventing the sensor from sending a value that is out of range for the stock ECU when going into boost.