Stage Zero (V330)

These maps are designed for a cat-back equipped 2003-2004 Lancer Evolution running 91, 93, or 100+ octane fuel. The brass restrictor pill in the boost line just before the factory boost control solenoid must be removed. In addition to raising boost by approximately 1-2psi and holds it more constantly to redline. It also induces a more aggressive timing and fuel mapping values. Use only with premium unleaded fuels.