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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

Complete BigStuff TPM Gen4 EFI System

From: $4,632.00

The BigStuff TPM GEN4 ECU is the most versatile computer on the market as you can select your options based on what you want out of your system. There are 10 sections below that you will go through to build your system and once built it will all load in your cart and your done. You can choose to not take any options in all of these sections if you like. 

Section 1: Choose which options you want your system to come with
Section 2: Choose which type of main engine and fuel injector harness you need based on your engine, ignition, and fuel injectors
Section 3: Choose to add another secondary O2 sensor, spare sensor, or no O2 option
Section 4: Choose to add on Big Drive Expansion Modules for extra inputs for O2 sensors and EGT sensors
Section 5: Choose which sensors to add onto your Bigstuff system. At a minimum we recommend getting air and water sensors.
Section 6: Choose your custom wire harnesses based on the options you chose in Section 1 
Section 7: Choose your wireless access hardware to your Bigstuff GEN4 ECU
Section 8: Choose which range map sensor your system will use
Section 9: Choose which Big Drive External Injector Driver Hardware if necessary based on running high amp low impedence injectors
Section 10: Choose how many Ignition Coils you need based on your engine size if running Coil On Plug

Complete the purchase in your cart and enjoy your new BigStuff TPM ECU system! 

Which Factory Options are you enabling with your GEN4 ECU? 1 Which Factory Options are you enabling with your GEN4 ECU?

Main Engine and Fuel Injection Harnesses 2 Main Engine and Fuel Injection Harnesses

Individual Wide Band O2 Sensors 3 Individual Wide Band O2 Sensors

Choose type and how many wide band O2 sensors for your system.

Multi-channel WBO2 and EGT Kits 4 Multi-channel WBO2 and EGT Kits

Race car dyno router kit is required for the big bands to communicate with the GEN4 ECU.

ECU Sensors 5 ECU Sensors

Pick any sensors you need to work with the options you have selected.

Wire Harness Kits 6 Wire Harness Kits

Pick you wire harnesses for the ECU options you have chosen here.

Ethernet Communication 7 Ethernet Communication

Choose either a base wireless battery powered router or the dyno race car kit which can allow for multiple ethernet connections for the Big Band expansion modules. The dyno race car kit also includes a wiring harness and power supply for the router,

Map Sensor 8 Map Sensor

Big Drive External Injector Driver 9 Big Drive External Injector Driver

Use an external injector driver when needing the ultimate in control with low impedance fuel injectors. With patented peak and hold fuel injector controls you will have the highest performing fuel injectors.

Ignition Coils 10 Ignition Coils

These high powered IGN1A ignition coils are guaranteed to light off the highest cylinder pressure combos you can throw at them! No external CDI coil driver box is necessary due to the high fire power of our ignition coils.

11 Review and Purchase

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    Category: BigStuff Gen4 ProXtreme
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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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