Product Features:For Idle to 5500 RPM Street-Driven PerformanceAll Factory Connections UsedPatented Runner Design Ensures Broad Torque CurveExcellent Throttle Response and Mid-Range Power50-State Street Legal with OEM Throttle BodyFor OE and Small Bore TBI Injectors OnlyNo Chip Changes/Computer Modifications Required5.7L Power Package Provides Free Computer Chip