BRAND NEW HOLLEY TERMINATOR X MAX STEALTH 4150 58X LS, SHINY FINISH, COMPATIBLE WITH GM 4L60 & 4L80 TRANSMISSIONS THE TERMINATOR X STEALTH 4150 EFI SYSTEM FROM HOLLEY FEATURES 4, 100LB/HR FUEL INJECTORS CAPABLE OF SUPPORTING UP TO 650 HP NATURALLY ASPIRATED OR 600 HP ON FORCED INDUCTION APPLICATIONS. THE TERMINATOR X ECU FEATURES FUEL MAPS THAT SELF-LEARN AND INTEGRATED IGNITION TIMING CONTROL, YIELDING IMPROVED IDLE STABILITY, DRIVABILITY, AND HORSEPOWER AT WIDE-OPEN THROTTLE! INCLUDES TRANSMISSION KICK DOWN PROVISIONS FOR GM TH350/400, 200R4/700R4 AND FORD C4/C6 APPLICATIONS. THESE KITS PROVIDE PLUG AND PLAY TRANSMISSION CONTROL FOR GM 4L60 & 4L80 TRANSMISSIONS. FEATURES: SUPPORTS UP TO 650HP WITH 4 - 100LB./HR. INJECTORS PROVIDES PLUG & PLAY TRANSMISSION CONTROL FOR GM TRANSMISSIONS INTERNAL 1BAR MAP SENSOR, BUILT INTO THE TERMINATOR X ECU ALL OF THE WIRING EXITS BELOW THE FUEL INJECTOR BOWLS, FOR A COMPLETELY STEALTH INSTALLATION AIR ENTRY MACHINED TO FIT MOST STOCK STYLE AIR CLEANERS WITH AIR CLEANER LOCATOR PROVISIONS EXTERNAL FUEL PRESSURE REGULATOR REQUIRED, BASE PRESSURE OF 58.5 PSI, SUCH AS 12-886 INTEGRATED IGNITION TIMING CONTROL PLUG AND PLAY WITH FACTORY LS COIL SUB HARNESS AND OEM LS COILS - NO EXTERNAL BOXES/MODULES NEEDED TO RUN COIL NEAR PLUG HIGH RESOLUTION FULL COLOR TOUCHSCREEN FOR INITIAL SETUP, TUNING & GAUGE DISPLAYS SIMPLE CALIBRATION WIZARD 4 INPUTS - 12V, GROUND, 5V, AND FREQUENCY, FOR THINGS SUCH AS ADDITIONAL PRESSURE SENSORS, OR ACTIVATION TRIGGERS FOR NITROUS ACTIVATION, OR A TRANS BRAKE (FUEL AND OIL PRESSURE INPUTS ARE PRE-TERMINATED) 4 OUTPUTS - GROUND, PWM - , FOR ACCESSORIES SUCH AS; FANS, BOOST CONTROL, NITROUS CONTROL, IAC KIT ETC. THE INCLUDED GENUINE BOSCH LSU 4.9 WIDEBAND OXYGEN SENSOR PROVIDES REAL-TIME FUEL MAP LEARN OEM STYLE TPS/IAC COMPATIBLE WITH HOLLEY EFI DIGITAL DASHES, GAUGES AND FUEL SYSTEM ACCESSORIES SPECS: BRAND: HOLLEY EFI COLOR: SHINY IGNITION TYPE: GM LS 58X INJECTOR SIZE: 100 LB/HR @ 58.5 PSI MAX HORSEPOWER RATING: 650 NATURALLY ASPIRATED PRODUCT TYPE: EFI SYSTEM TERMINATOR LS OPTIONS: FUEL, SPARK, TRANSMISSION YOU CAN VIEW AND DOWNLOAD THE QUICK START GUIDE FOR THIS FUEL INJECTION SYSTEM HERE.