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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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Home BigStuff Gen4 ProXtreme O2 Sensors / Ignition Coils
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LS 4-Pin Ignition Coil Harness

$119.99

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Categories: All BigStuff Products, O2 Sensors / Ignition Coils
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Chevy (1357), Chevy (2468)

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#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 Test Modes: learn from the expert himself, owner Ben Davidow!
😤 These men are on a mission, and we're proud that 😤 These men are on a mission, and we're proud that our #BigStuffTPM Gen4 Pro Xtreme ECU is helping them get it done! Congratulations, Bryan @laflamaz & @bryanmetzenheim!

🗣️💬 @pdraracing: Bryan LaFlam grabs his first Racing Performance Motorcoaches #1 Qualifier bonus in MagnaFuel Products Inc. Top Sportsman of the 2026 Red Line Synthetic Oil PDRA Drag Racing Series season at the PDRA North vs. South Shootout at Maryland International Raceway.
LaFlam took his supercharged '67 Mustang to a 3.776 elapsed time at over 194 miles per hour to take top qualifying honors, outlasting two nitrous cars in Jamie Fowler and Bruce Thrift. 

#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
💪 If you want success, you have to work for it–an 💪 If you want success, you have to work for it--and no one works harder than #BigStuffTPM racer @bangerbob!

🗣️💬 Quick stop at @greatlakesdragaway to dial in new injectors. Courtesy of Nick @streetcarshenanigans and @bigstufftpm 
(And a late night snack) 

#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
🔥 @btdupont has built an absolutely exquisite exam 🔥 @btdupont has built an absolutely exquisite example of hot rodding perfection—and his '55 runs a #BigStuffTPM ECU!
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🗣️💬 Small Block Ford warming up with American Forced Induction AFX-94R. Hope to see this one making some laps soon.

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😤 These men are on a mission, and we're proud that our #BigStuffTPM Gen4 Pro Xtreme ECU is helping them get it done! Congratulations, Bryan LaFlam & Bryan Metzenheim!Bryan LaFlam grabs his first Racing Performance Motorcoaches #1 Qualifier bonus in MagnaFuel Products Inc. Top Sportsman of the 2026 Red Line Synthetic Oil PDRA Drag Racing Series season at the PDRA North vs. South Shootout at Maryland International Raceway.LaFlam took his supercharged '67 Mustang to a 3.776 elapsed time at over 194 miles per hour to take top qualifying honors, outlasting two nitrous cars in Jamie Fowler and Bruce Thrift. … See MoreSee Less

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