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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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Click HERE to Shop BigStuff Gen4 ProXtreme EFI Systems

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Gen3 to Gen4 ECU Upgrade Kit (EUK)
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Gen3 to Gen4 ECU Upgrade Kit (EUK)

BigStuff TPM
$1,999.00 – $3,199.00Price range: $1,999.00 through $3,199.00
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GEN3-GEN4 Calibration Conversion

$100.00
GEN3-to-GEN4 16 Injector Upgrade Kit
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GEN3-to-GEN4 16 Injector Upgrade Kit

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$69.00
GEN4 (1) 30-WAY (A-K) Connector/Terminal Kit
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GEN4 (1) 30-WAY (A-K) Connector/Terminal Kit

BigStuff TPM
$49.00
GEN4 (1) 30-WAY (L-Y) Connector/Terminal Kit
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GEN4 (1) 30-WAY (L-Y) Connector/Terminal Kit

BigStuff TPM
$49.00
GEN4 (2) 30-WAY Connector/Terminal Kit
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GEN4 (2) 30-WAY Connector/Terminal Kit

BigStuff TPM
$95.00
GEN4 16 Injector Pro Stock Kit
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GEN4 16 Injector Pro Stock Kit

BigStuff TPM
$929.00
GEN4 20' Unterminated Main Engine Harness
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GEN4 20′ Unterminated Main Engine Harness

BigStuff TPM
$899.00
GEN4 6' Unterminated Main Engine Harness
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GEN4 6′ Unterminated Main Engine Harness

BigStuff TPM
$599.00
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

$345.00
GEN4 CO2 Boost Solenoid Block
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GEN4 CO2 Boost Solenoid Block

BigStuff TPM
$199.00
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BigStuff EFI – GEN 3 & 4 ECU Sales & Support. Order online at BigStuff3.com.

🏆 @holleyfordfest is in the books and so is ano 🏆 @holleyfordfest is in the books and so is another WIN for @psienk3 ! His #BigStuffTPM-controlled turbocharged 1998 Ford Mustang Cobra crushed it in the Street Race 8.60 class against some tough competition.

#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
✅ Everything you need right from the start, only ✅ Everything you need right from the start, only 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
🛣️ This is worth making the trip for! Seats a 🛣️ This is worth making the trip for! Seats are almost gone, so reserve your space NOW!
📅 Saturday, October 11
📍 Mooresville, NC
🔗 https://bigstufftpm.com/product/2025-10-bigstuff-training-seminar/
#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
💬 "For anyone familiar with the legacy BS3 syst 💬 "For anyone familiar with the legacy BS3 system and ownership and still think that BigStuff is the same, you are unaware or mistaken. The BS4 is right up there with the best of any system of today."

-Rob Zarcone, crew chief on Nico Cechet's @pandesperformance-built Chevelle
👀 Have you registered for our training seminar 👀 Have you registered for our training seminar yet? (And did we mention we're including lunch?? 🥪)
👋🏆 Say hello to your 2025 NHRA Pro Stock cha 👋🏆 Say hello to your 2025 NHRA Pro Stock champion, @johndeflorianracing!! John runs an original 20+ year old #BigStuffTPM ECU but still outruns 'em all!

#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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About BigStuff TPM

BigStuff is a Michigan-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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