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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

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Home BigStuff Gen4 ProXtreme Main Wire Harness & Injector Wire Harness Kits

Main Wire Harness (MWH) & Injector Wire Harness (IWH) Kit

$719.00 – $879.00Price range: $719.00 through $879.00

All engine main wire harnesses include as standard features premium TXL wire, pre-terminated sensor connector ends and are labeled for easy connection to the sensors.

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Categories: All BigStuff Products, Main Wire Harness & Injector Wire Harness Kits
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Description
Additional information

All engine main wire harnesses include as standard features premium TXL wire, pre-terminated sensor connector ends and are labeled for easy connection to the sensors.

One fuel injection harness is included and features premium TXL wire and comes completely assembled and labeled for connection to the fuel injectors.

EV1 = Evolution 1 fuel injector connectors
EV6 = Evolution 6 fuel injector connectors

BASE engine wire harness kits are used with a points-style ignition trigger output.

All other engine harnesses are utilized for dedicated engine coil on plug applications except for the universal Chevy/Ford COP harnesses which have both HED and VR connectors for the crank/cam sensors.

 

Weight 5 lbs
Dimensions 15 × 15 × 5 in

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💪 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
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🫡 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!

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🏆🥇 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!
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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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