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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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"Smart" High Current Output COP Harness
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“Smart” High Current Output COP Harness

BigStuff TPM
$249.00
"Smart" High Output COP Harness
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“Smart” High Output COP Harness

BigStuff TPM
$129.00
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Chevrolet EV-1 Fuel Injector Wire Harness

$125.00
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Chevrolet EV-6 Fuel Injector Wire Harness

$125.00
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Ford EV-1 Fuel Injector Wire Harness

$125.00
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Ford EV-6 Fuel Injector Wire Harness

$125.00
GEN3-to-GEN4 16 Injector Upgrade Kit
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GEN3-to-GEN4 16 Injector Upgrade Kit

BigStuff TPM
$69.00
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
GEN4 CAN-EGT Wiring Harness
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GEN4 CAN-EGT Wiring Harness

$150.00
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
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
GEN4 PRO XTREME - GEN4 OFU Harness Kit - 6-STAGE NOS
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GEN4 PRO XTREME – GEN4 OFU Harness Kit – 6-STAGE NOS

BigStuff TPM
$279.00
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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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💪 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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