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Click HERE to Shop BigStuff Gen4 ProXtreme EFI Systems

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

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GEN4 CAN EGT Option
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GEN4 Feature Upgrades

GEN4 CAN EGT Option

BigStuff TPM
$0.00
Choose this option when wanting the CAN EGT feature enabled on your ECU. 
GEN4 CAN-EGT 8 Channel Module8-Ch BIG BAND Module - (8) Channel CAN EGT Module for use with GEN4 EGT CAN / BSEFI Installed CAN Wiring
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GEN4 CAN-EGT 8 Channel Module8-Ch BIG BAND Module – (8) Channel CAN EGT Module for use with GEN4 EGT CAN / BSEFI Installed CAN Wiring

BigStuff TPM
$650.00
Our GEN4 CAN-EGT Module is the most cost effective way to bring EGT data into your GEN4 ECU.
GEN4 CO2 Boost Solenoid Block
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GEN4 CO2 Boost Solenoid Block

BigStuff TPM
$199.00
Our CO2 solenoids are when you want the ultimate in precision CO2 or boost pressure control over your boosted engine combination. This is for the CO2 solenoid block only and the wire harness can be purchased separately. 
GEN4 DAI Connector/Terminal Kit
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GEN4 DAI Connector/Terminal Kit

BigStuff TPM
$14.00
GEN4 IPU Connector/Terminal Kit
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GEN4 IPU Connector/Terminal Kit

BigStuff TPM
$19.00
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 - 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.
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.
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GEN4 PRO XTREME – GEN4 9th Injector Harness

BigStuff TPM
$129.00
GEN4 PRO XTREME - GEN4 OFU Hardware Kit - BOOST (Includes Wire Harness, Sensor and CO2 Block)
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GEN4 PRO XTREME – GEN4 OFU Hardware Kit – BOOST (Includes Wire Harness, Sensor and CO2 Block)

BigStuff TPM
$379.00
Are you tired of running an external boost controller separate from your ECU that you need to work with? With the GEN4 ECU the CO2 based control strategy is now built in and completely customizable. There is even a scramble input to apply an additional...
GEN4 PRO XTREME - GEN4 OFU Harness Kit - 4L60E / 4L80E
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GEN4 PRO XTREME – GEN4 OFU Harness Kit – 4L60E / 4L80E

BigStuff TPM
$269.00
Provides one wiring harness for the 4L60E/4L80E feature.
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BigStuff EFI – GEN 3 & 4 ECU Sales & Support. Order online at BigStuff3.com.

💪 On only its 4th full hit with slicks and riding 💪 On only its 4th full hit with slicks and riding the traction control from 2.8 to 3.8s, Rob Zarcone's #BigStuffTPM Gen4 Pro Xtreme-controlled PDRA Pro Street Camaro still went 4.18 @ 190! Next up, some adjustments to the 4-link for further refinement.

#BigStuffEFI #GoBIGorGoHome #TotalPowerManagement #BigStuff3 #BigStuff3EFI #BS3EFI #EFItuning #ProMod #ProModified #NHRA #dragracing #bigtire #smalltire #radialracing #enginemagenement #fuelinjection #EFIsystem #EFI #bigblock #smallblock #hotrod #streetstrip #dragndrive #draganddrive #PDRA #ProStock #Topsportsman #MMPS
👏 NO COST software updates 👏 Because we want to se 👏 NO COST software updates 👏 Because we want to see you WIN with #BigStuffTPM.
#BigStuffEFI #GoBIGorGoHome #TotalPowerManagement #BigStuff3 #BigStuff3EFI #BS3EFI #EFItuning #ProMod #ProModified #NHRA #dragracing #bigtire #smalltire #radialracing #enginemagenement #fuelinjection #EFIsystem #EFI #bigblock #smallblock #hotrod #streetstrip #dragndrive #draganddrive #PDRA #ProStock #Topsportsman #MMPS
💻 Tech Tip Tuesday – #BigStuffTPM Gen4 Pro Xtreme 💻 Tech Tip Tuesday - #BigStuffTPM Gen4 Pro Xtreme Dwell Rev-Limiter Reduction: learn from the expert himself, owner Ben Davidow!
🫡 This thing is FLYING! Great work by Tim Hudson a 🫡 This thing is FLYING! Great work by Tim Hudson and Dylan Hudson - their #BigStuffTPM-controlled Bennett Racing Engines small block Ford is definitely going to put some guys on the trailer!
📸🏆 Want a winner's circle photo collection of your 📸🏆 Want a winner's circle photo collection of your own? Let's talk!

We’re blessed to work with so many great teams like @laflamaz's. They're a well-oiled machine that bracket races a Pro Mod and consistently comes out on top! Bryan uses our latest #BigStuffTPM firmware every time we make a change, so new users can be confident that it wins even in one of the toughest classes on the planet. 

If you have any questions or want to see how a BigStuff GEN4 system can improve your program, email us at support@bigstufftpm.com!

#BigStuffEFI #GoBIGorGoHome #TotalPowerManagement #BigStuff3 #BigStuff3EFI #BS3EFI #EFItuning #ProMod #ProModified #NHRA #dragracing #bigtire #smalltire #radialracing #enginemagenement #fuelinjection #EFIsystem #EFI #bigblock #smallblock #hotrod #streetstrip #dragndrive #draganddrive #PDRA #ProStock #Topsportsman #MMPS
🏆🥇 It's been an absolutely BRILLIANT season for KS 🏆🥇 It's been an absolutely BRILLIANT season for KSR Racing's Jonathan Allegrucci and his #BigStuffTPM Gen4 Pro Xtreme-controlled Cobra Jet! Congratulations to the team on the WIN and the 2026 @nhra Factory Stock Showdown season CHAMPIONSHIP!
READ MORE 🔗 https://www.nhra.com/news/2026/champ-fss

#BigStuffEFI #GoBIGorGoHome #TotalPowerManagement #BigStuff3 #BigStuff3EFI #BS3EFI #EFItuning #ProMod #ProModified #NHRA #dragracing #bigtire #smalltire #radialracing #enginemagenement #fuelinjection #EFIsystem #EFI #bigblock #smallblock #hotrod #streetstrip #dragndrive #draganddrive #PDRA #ProStock #Topsportsman #MMPS
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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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19 hours ago

BigStuff TPM
💪 On only its 4th full hit with slicks and riding the traction control from 2.8 to 3.8s, Rob Zarcone�#BigStuffTPMffTPM Gen4 Pro Xtreme-controlled PDRA Pro Street Camaro still went 4.18 @ 190! Next up, some adjustments to the 4-link for further refinement. …

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