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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

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O2 Sensors / Ignition Coils

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"Smart" High Output Coils
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All BigStuff Products, Dealer / Jobber, O2 Sensors / Ignition Coils

“Smart” High Output Coils

BigStuff TPM
$515.00 – $650.00Price range: $515.00 through $650.00
For use with our COP main engine harnesses. They will work with either our standard or high current output COP wire harnesses.
GEN4 PRO XTREME - 1/4" Type-K Thermocouple for BIG BAND Module
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GEN4 PRO XTREME – 1/4″ Type-K Thermocouple for BIG BAND Module

BigStuff TPM
$105.00
Replacement parts for the current type-k thermocouple.
GEN4 PRO XTREME - BOSCH LSU4.9 WBO2 Sensor
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GEN4 PRO XTREME – BOSCH LSU4.9 WBO2 Sensor

Bosch
$115.00
Replacement parts for the current wideband O2 sensors.
GEN4 PRO XTREME - CAT6a Shielded Ethernet Cable
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GEN4 PRO XTREME – CAT6a Shielded Ethernet Cable

BigStuff TPM
$11.00 – $30.00Price range: $11.00 through $30.00
Connect to the ECU wirelessly or through a CAT5 connection.
GEN4 PRO XTREME - Cinch Terminal Removal Kit (for removing & relocating GEN3 ECU harness terminals to be compatible with GEN4 ECU)
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GEN4 PRO XTREME – Cinch Terminal Removal Kit (for removing & relocating GEN3 ECU harness terminals to be compatible with GEN4 ECU)

BigStuff TPM
$100.00
This is a connector pin removal tool for moving pins around on the ECU header connectors. Used to remove & relocate GEN3 ECU harness terminals to be compatible with GEN4 ECU.

In stock

GEN4 PRO XTREME - Dyno / Race Car Wireless Router Kit
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GEN4 PRO XTREME – Dyno / Race Car Wireless Router Kit

BigStuff TPM
$299.00
This kit is for 16vdc or higher systems. Includes a multi-input router and voltage reducer to power the router.

Only 2 left in stock

GEN4 PRO XTREME - In-Vehicle Wireless Router Kit
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GEN4 PRO XTREME – In-Vehicle Wireless Router Kit

BigStuff TPM
$159.00
This kit is for a true WiFi connection to you ECU. It includes one mini wireless router, 120v power adapter, cigarette lighter adapter and a battery power supply. On a full charge the battery can last over 8 hours and will let you connect to your ECU without the need for cables anymore!
GEN4 PRO XTREME - NTK WBO2 Sensor for Methanol
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GEN4 PRO XTREME – NTK WBO2 Sensor for Methanol

BigStuff TPM
$699.00
Replacement parts for the current wideband O2 sensors.
USB-to-RJ45 Ethernet Dongle
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GEN4 PRO XTREME – USB-to-RJ45 Ethernet Dongle

BigStuff TPM
$35.00
Connect to the ECU wirelessly or through a CAT5 connection.

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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.

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The off-season will be here in no time. Ready to step up your program and WIN in 2026? Give #BigStuffTPM a call and we'll get you set up with the latest in total power management solutions. 💪📸 Peter PisaliNDRC – National Drag Racing Championshipnship winner … See MoreSee Less

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