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Howell EFI Is The EFI Conversion Solution of Choice For Wagonmaster Restorations

The Jeep Grand Wagoneer was an iconic sport utility vehicle dating back to even before SUV was ever coined as a hip genre of automobile.…

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EcoTec3 5.3L

Howell LT/EcoTec3 Conversion Harnesses and Accessories Now Available for GM Direct Injection Swaps

Marine City, MI, (April 11, 2019) – Howell EFI, long been known as a leader in EFI conversions since the late 1980’s beginning with GM TPI conversions,…

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Howell Introduces Complete TBI Conversion Kits for Chrysler, Dodge and Plymouth

Everything needed in one kit for a turnkey Mopar® TBI conversion Marine City, MI, (April 9 2019) –  Howell EFI, an industry leader in electronic…

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LT1

LT1/LT4/Ecotec3 Gen V Swap Harnesses Now Available!

Howell EFI is pleased to introduce their new 2016 LT1 Camaro, 2014 – 2016 LT1 Corvette, and 2015 – 2016 LT4 Corvette harnesses, as well…

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One Size Does Not Fit All

A custom wiring harness and kit are the only way to go with Electronic Fuel Injection conversions. Not all vehicle builds are the same. That’s…

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Jeep TBI Video

Jeep EFI Upgrade Tips

Howell EFI Conversion Kit Helps Kick The Carb! No vehicle on the road  (or off road) benefits more from swapping from a classic carburetor to…

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Drive By Wire Installation Tips

With many of their electronic fuel injection conversions, Howell EFI includes a drive-by-wire (DTW) pedal assembly that must be mounted in the new vehicle to…

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Howell EFI: Announces Ecotec3 4.3 L V6 Direct Injection Harnesses Now Available

Howell EFI announces availability of 2014+ EcoTec3 4.3L V6 LV3-C truck wiring harnesses, allowing for transplant into an unlimited number of applications from Street Rod,…

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Howell EFI: Conversion Kits Help Kick The Carb!

Jeep EFI Upgrade Tips: Howell EFI Conversion Kits Help Kick The Carb! No vehicle on the road (or off road) benefits more from swapping from…

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Regardless of the Engine Transplant, Howell has You Covered

Currently Howell EFI offers wide-ranging GM-style EFI conversions for many applications and harness conversions for any GM V6 and V8 engine from 1985 to present.…

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