• Track Your order
  • Contact Us
  • Call (248) 786-7012
Facebook Instagram Youtube
Facebook Instagram Youtube
  • Shop
    • All BigStuff Products
    • BigStuff Gen4 Pro Xtreme
      • Big Band Modules
      • Connectors & Terminal Kits
      • GEN4 Feature Upgrades
      • Harnesses & Hardware Kits
      • Main Wire Harness & Injector Wire Harness Kits
      • O2 Sensors / Ignition Coils
    • BigStuff Pro Hardware
      • Big Drive Injector Driver Systems
      • Connectors & Terminal Kits
      • Crank Wheels / Driveshaft Collars
      • Dealer / Jobber
      • Fuel Pumps
      • Sensors, Actuators, & Coils
    • BigStuff Gen4 Price List
    • Apparel
  • Build a System
  • Gen4 ECU
    • Big Band Modules
    • Connectors & Terminal Kits
    • GEN4 Feature Upgrades
    • Harnesses & Hardware Kits
    • Main Wire Harness & Injector Wire Harness Kits
    • O2 Sensors / Ignition Coils
  • Dealers
  • Tech Info
    • Gen3 Tech & Support
    • Gen4 Tech & Support
    • Gen4 ECU Firmware
    • Gen4 ECU Calibrations
    • Software Downloads
  • About
    • About BigStuff
    • Warranty Information & Registration Information
    • News
    • Customers
  • Contact
  • My Account
$0.00 0 Cart
  • Shop
    • All BigStuff Products
    • BigStuff Gen4 Pro Xtreme
      • Big Band Modules
      • Connectors & Terminal Kits
      • GEN4 Feature Upgrades
      • Harnesses & Hardware Kits
      • Main Wire Harness & Injector Wire Harness Kits
      • O2 Sensors / Ignition Coils
    • BigStuff Pro Hardware
      • Big Drive Injector Driver Systems
      • Connectors & Terminal Kits
      • Crank Wheels / Driveshaft Collars
      • Dealer / Jobber
      • Fuel Pumps
      • Sensors, Actuators, & Coils
    • BigStuff Gen4 Price List
    • Apparel
  • Build a System
  • Gen4 ECU
    • Big Band Modules
    • Connectors & Terminal Kits
    • GEN4 Feature Upgrades
    • Harnesses & Hardware Kits
    • Main Wire Harness & Injector Wire Harness Kits
    • O2 Sensors / Ignition Coils
  • Dealers
  • Tech Info
    • Gen3 Tech & Support
    • Gen4 Tech & Support
    • Gen4 ECU Firmware
    • Gen4 ECU Calibrations
    • Software Downloads
  • About
    • About BigStuff
    • Warranty Information & Registration Information
    • News
    • Customers
  • Contact
  • Shop
    • All BigStuff Products
    • BigStuff Gen4 Pro Xtreme
      • Big Band Modules
      • Connectors & Terminal Kits
      • GEN4 Feature Upgrades
      • Harnesses & Hardware Kits
      • Main Wire Harness & Injector Wire Harness Kits
      • O2 Sensors / Ignition Coils
    • BigStuff Pro Hardware
      • Big Drive Injector Driver Systems
      • Connectors & Terminal Kits
      • Crank Wheels / Driveshaft Collars
      • Dealer / Jobber
      • Fuel Pumps
      • Sensors, Actuators, & Coils
    • BigStuff Gen4 Price List
    • Apparel
  • Build a System
  • Gen4 ECU
    • Big Band Modules
    • Connectors & Terminal Kits
    • GEN4 Feature Upgrades
    • Harnesses & Hardware Kits
    • Main Wire Harness & Injector Wire Harness Kits
    • O2 Sensors / Ignition Coils
  • Dealers
  • Tech Info
    • Gen3 Tech & Support
    • Gen4 Tech & Support
    • Gen4 ECU Firmware
    • Gen4 ECU Calibrations
    • Software Downloads
  • About
    • About BigStuff
    • Warranty Information & Registration Information
    • News
    • Customers
  • Contact
$0.00 0 Cart

Click HERE to Shop BigStuff Gen4 ProXtreme EFI Systems

Get On-Site & Remote Tuning Services from Our Authorized Dealers

Tech Info, Downloads, & More

Click HERE to Shop BigStuff Gen4 ProXtreme EFI Systems

Get On-Site & Remote Tuning Services from Our Authorized Dealers

Tech Info, Downloads, & More

Home BigStuff Gen4 ProXtreme GEN4 Feature Upgrades
Placeholder

GEN4 ECU Option Wire Harness Bundle

From: $109.00

E85 Harness

GEN4 PRO XTREME - GEN4 OFU Harness Kit - E85

Provides one wiring harness for wiring in an E85 sensor.

DAE Harness 2

GEN4 PRO XTREME - GEN4 OFU Harness Kit - DAE

Provides one wiring harness for the Data Acquisition External (DAE) sensors.

SR2.3 Harness

GEN4 PRO XTREME - GEN4 OFU Harness Kit - SR2.3

Provides one wiring harness for connecting up one driveshaft sensor to the GEN4 ECU.

DAE2 Harness

GEN4 PRO XTREME - GEN4 OFU Harness Kit - DAE2

Provides one wiring harness for the Data Acquisition External (DAE) sensors.

NOS 6-Stage Harness

GEN4 PRO XTREME - GEN4 OFU Harness Kit - 6-STAGE NOS

Provides one wiring harness for the 6-Stage NOS feature.

4L60E Harness

GEN4 PRO XTREME - GEN4 OFU Harness Kit - 4L60E / 4L80E

Provides one wiring harness for the 4L60E/4L80E feature.

Boost CO2 Harness

GEN4 PRO XTREME - GEN4 OFU Harness Kit - BOOST

Provides one wiring harness for the boost controller feature.

DAE3 HARNESS

GEN4 PRO XTREME - GEN4 OFU Harness Kit - DAE3

Provides one wiring harness for the DAE3 sensors.

Boost CO2 Harness

GEN4 PRO XTREME - GEN4 OFU Hardware Kit - BOOST (Includes Wire Harness, Sensor and CO2 Block)

    Category: GEN4 Feature Upgrades
    Share: Facebook Twitter Tumblr Linkedin
    Additional information

    GEN4 PRO XTREME - GEN4 OFU Harness Kit - E85

    Weight 2 lbs
    Dimensions 9 × 7 × 3 in

    GEN4 PRO XTREME - GEN4 OFU Harness Kit - DAE

    Weight 2 lbs
    Dimensions 10 × 10 × 3 in

    GEN4 PRO XTREME - GEN4 OFU Harness Kit - SR2.3

    Weight 2 lbs
    Dimensions 10 × 10 × 3 in

    GEN4 PRO XTREME - GEN4 OFU Harness Kit - DAE2

    Weight 2 lbs
    Dimensions 10 × 10 × 3 in

    GEN4 PRO XTREME - GEN4 OFU Harness Kit - 6-STAGE NOS

    Weight 2 lbs
    Dimensions 10 × 10 × 3 in

    GEN4 PRO XTREME - GEN4 OFU Harness Kit - 4L60E / 4L80E

    Weight 2 lbs
    Dimensions 13 × 10 × 3 in

    GEN4 PRO XTREME - GEN4 OFU Harness Kit - BOOST

    Weight 1 lbs
    Dimensions 13 × 10 × 3 in

    GEN4 PRO XTREME - GEN4 OFU Harness Kit - DAE3

    Weight 1 lbs
    Dimensions 13 × 10 × 3 in

    GEN4 PRO XTREME - GEN4 OFU Hardware Kit - BOOST (Includes Wire Harness, Sensor and CO2 Block)

    Weight 3 lbs
    Dimensions 10 × 10 × 3 in

    Related products

    Placeholder
    Quick View
    GEN4 Feature Upgrades

    GEN4 DAE3 Upgrade Option

    $150.00
    Placeholder
    Quick View
    GEN4 Feature Upgrades

    GEN4 E85 Upgrade Option

    $150.00
    Placeholder
    Quick View
    GEN4 Feature Upgrades

    GEN4 CAN EGT Option

    $0.00
    Placeholder
    Quick View
    GEN4 Feature Upgrades

    GEN4 DAE2 Upgrade Option

    $150.00
    Placeholder
    Quick View
    GEN4 Feature Upgrades

    GEN4 4L60E/4L80E Transmission Control Option

    $150.00
    Placeholder
    Quick View
    GEN4 Feature Upgrades

    GEN4 DAE Upgrade Option

    $150.00
    Placeholder
    Quick View
    GEN4 Feature Upgrades

    GEN4 Nitrous Option

    $150.00

    Product categories

    • All BigStuff Products (134)
    • Apparel (2)
    • BigStuff Gen4 ProXtreme (92)
      • Big Band Modules (8)
      • Connectors & Terminal Kits (11)
      • GEN4 Feature Upgrades (10)
      • Harnesses & Hardware Kits (27)
      • Main Wire Harness & Injector Wire Harness Kits (30)
      • O2 Sensors / Ignition Coils (9)
    • BigStuff Pro Hardware (51)
      • Big Drive Injector Driver Systems (2)
      • Connectors & Terminal Kits (10)
      • Crank Wheels / Driveshaft Collars (6)
      • Dealer / Jobber (14)
      • Sensors, Actuators, & Coils (23)
    • Swag (4)

    Shop by Brand

    • All brands
    • BigStuff TPM(118)
    • Bosch(2)
    GEN4 No Upgrade Option

    $0.00

    GEN4 DAE3 Upgrade Option

    $150.00

    Sign Up For Our Newsletter

    Follow @BigStuffTPM on Instagram

    Follow on Instagram

    BigStuff is an American-based company focused on the design, manufacture, and marketing of state-of-the-art electronic engine and powertrain controllers for the performance aftermarket.

    Email: Support@BigStuffTPM.com

    Phone: (248) 786-7012

    DEALER Services

    • BigStuff EFI Tuning
    • Custom Programming
    • Power Management
    • On-Site Tuning Support
    • Remote Tuning Support
    • Hardware Sales
    • Project Consultation
    Learn More

    follow @BigStuffTPM

    Facebook Instagram Youtube

    BigStuff TPM

    2 days ago

    BigStuff TPM
    Turbo John Racing hit up Mike Hill's race at Carolina Dragway this weekend and his boosted small block Ford ran quicker than ever with#BigStuffTPMffTPM Gen4 Pro Xtreme ECU! … See MoreSee Less

    Faster…. 85mm boosted SBF

    www.youtube.com

    Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube.
    View on Facebook
    · Share

    Share on Facebook Share on Twitter Share on Linked In Share by Email

    subscribe on YouTube

    BigStuff GEN4 V12 Ferrari Engine Dyno Test

    Subscribe to See More!
    © 2026 BigStuff Total Power Management, all rights reserved. | Website developed by P.TEN Marketing.

    2026 Ⓒ All rights reserved BigStuff Total Power Management

    Website developed by P.TEN Marketing

    Home
    Shop
    Wishlist
    0 Cart
    More
    More
    • Shop
      • All BigStuff Products
      • BigStuff Gen4 Pro Xtreme
        • Big Band Modules
        • Connectors & Terminal Kits
        • GEN4 Feature Upgrades
        • Harnesses & Hardware Kits
        • Main Wire Harness & Injector Wire Harness Kits
        • O2 Sensors / Ignition Coils
      • BigStuff Pro Hardware
        • Big Drive Injector Driver Systems
        • Connectors & Terminal Kits
        • Crank Wheels / Driveshaft Collars
        • Dealer / Jobber
        • Fuel Pumps
        • Sensors, Actuators, & Coils
      • BigStuff Gen4 Price List
      • Apparel
    • Build a System
    • Gen4 ECU
      • Big Band Modules
      • Connectors & Terminal Kits
      • GEN4 Feature Upgrades
      • Harnesses & Hardware Kits
      • Main Wire Harness & Injector Wire Harness Kits
      • O2 Sensors / Ignition Coils
    • Dealers
    • Tech Info
      • Gen3 Tech & Support
      • Gen4 Tech & Support
      • Gen4 ECU Firmware
      • Gen4 ECU Calibrations
      • Software Downloads
    • About
      • About BigStuff
      • Warranty Information & Registration Information
      • News
      • Customers
    • Contact
    Cleantalk Pixel