FCD-1 (pneumatic)The FCD 1 allows for an accurate increase in the factory fuel cut out level without the need for cutting splicing wires or affecting off boost conditions. Suited to most turbo cars using a MAP sensor. The unit can be locked to prevent tampering. WHEN DO YOU NEED A FUEL CUT DEFENDER? Most late model cars have in built defense mechanisms to guard against increases in boost pressure. Such systems are important, but can be an obstacle when increasing