Edelbrock® GM LS1/LS3 Pro-Flo 4 EFI XT-Style System
Edelbrock® GM LS1/LS3 Pro-Flo 4 EFI XT-Style System


Edelbrock® GM LS1/LS3 Pro-Flo 4 EFI XT-Style System

Regular price$2,258.95
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    Compatible: (5.7L/6.2L)

    1998 - 2002 Chevy Camaro

    2010 - 2015 Chevy Camaro 

    1997 - 2004 Chevy Corvette

    2008 - 2013 Chevy Corvette 

    1998 - 2002 Pontiac Firebird 

    2008 - 2010 Pontiac G8





    The Edelbrock part #35733 Pro-Flo 4 XT Sequential Port EFI System for Chevrolet LS GEN III/IV engines is equipped with the latest in technology and features. The EFI system comes complete with a Pro-Flo XT cathedral port black finish intake manifold and 35 Lb/Hr injectors capable of 550 HP with 58 p.s.i. fuel pressure. The new Pro-Flo 4 EFI systems feature an all-new ECU with a faster processor, a water proof design and measures half the depth of the previous ECU. It also has an upgraded Bluetooth chip that is faster, more reliable and will not drop connection. We've added more features for the advanced tuner giving you control over air-fuel ratios, ignition curve, idle speed, acceleration fuel, coolant fans, Rev limiter while retaining the simplicity Pro-Flo is known for. The key to the system is our exclusive E-Tuner 4 app with dyno developed base calibrations. The E-Tuner 4 app uses a Bluetooth wireless connection to communicate with the ECU's self-learning capability to continually adjust the calibration to get the maximize performance of your engine. E-Tuner 4 features a simple and easy to use setup wizard to help you get started. Best of all, the E-Tuner 4 app is free and can be downloaded from the Google Play Store, allowing you to use your personal Android based smart phone or tablet. If you don't have a compatible device, then we also offer kits that include a 7" Android tablet with the E-Tuner 4 app pre-installed. Multiple dash displays are included to allow you to monitor engine vitals and performance from your Android smart phone or tablet. Pro-Flo 4 does not require laptop tuning.

    System Type XT-Style Kit
    Gasket Or Seal Included Yes
    Quantity Kit
    Wiring Harness Included Yes
    Fuel Pressure Port 1/8-27 NPT
    Bore Diameter 90 mm
    Fuel Injector Type 35 lb/hr
    Maximum Horsepower 550
    Availability Note Available to Order
    Warranty 24 Months
    Distributor Cap Included Yes
    Manifold Color Black Finish
    Emissions Code


    Hazardous Materials Warning WARNING: This product can expose you to Lead, which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.P65warnings.ca.gov.
    Installation Notes
    • This kit will require a high pressure EFI fuel delivery system. Fuel delivery systems are available and sold separately. LS kits will require a coil harness which is sold separately. 24(x) reluctor applications will require #37-1633 and 58(x) reluctor applications will require #37-1632. For the heights of all Edelbrock manifolds please visit the Manifold Reference Dimensions page.
    Finish Black
    Throttle Body Type Single Blade

    Install Guide:


    WARNING This product can expose you to chemicals including lead which is known to the State of California to cause cancer or birth defects or other reproductive harm.   www.p65warnings.ca.gov 

    PDF-Material Safety Data Sheet