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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 O2 Sensors / Ignition Coils
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GEN4 Wide Band O2 Sensor Bundle

From: $229.00

Bs4-005-010 secondary lsu4.9 kit

GEN4 PRO XTREME - GEN4 SFU Harness & H/W Kit - Secondary LSU4.9 WBO2

The secondary LSU4.9 wideband oxygen sensor upgrade is recommended to improve the additional AFR data collection and run the ECU in bank-to-bank closed loop AFR control.

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N2K O2 Sensor_1

GEN4 PRO XTREME - NTK WBO2 Sensor for Methanol

Replacement parts for the current wideband O2 sensors.

MWH IWH Harness

Harness & Hardware Kit - Primary NTK WBO2 for Methanol

For the ultimate in oxygen content reading in your exhaust, we recommend going with the Lab Grade NTK oxygen sensor upgrade.

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Secondary NTK O2 Kit

Harness & Hardware Kit - Secondary NTK WBO2 for Methanol

For the ultimate in oxygen content reading in your exhaust, we recommend going with the Lab Grade NTK oxygen sensor upgrade.

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    Category: O2 Sensors / Ignition Coils
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    Additional information

    GEN4 PRO XTREME - GEN4 SFU Harness & H/W Kit - Secondary LSU4.9 WBO2

    Weight 5 lbs
    Dimensions 13 × 13 × 3 in

    GEN4 PRO XTREME - NTK WBO2 Sensor for Methanol

    Weight 1 lbs
    Dimensions 5 × 5 × 5 in

    Harness & Hardware Kit - Primary NTK WBO2 for Methanol

    Weight 5 lbs
    Dimensions 13 × 13 × 5 in

    Harness & Hardware Kit - Secondary NTK WBO2 for Methanol

    Weight 5 lbs
    Dimensions 13 × 10 × 5 in

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    💪 Bob Gruber and his team work relentlessly not just to improve their own program, but also to work with us on improving our #BigStuffTPM ECU. It's feedback like this that keeps us motivated to help YOU do BIG things!🗣️💬 "The ability to walk next to the car and connect to the ECU was just one feature of the new BigStuff Gen4 Pro Xtreme. Real-time data logs without the laptop in the car, and remote data collection were among the countless other features. I can’t thank Ben Davidow and BigStuff enough for sponsoring our race program. Ben stayed in close contact with Nick Larson during the tuning sessions. His level of customer service was second to none." … See MoreSee Less

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