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EFI Source EFI Source is dedicated to supplying the highest quality EFI products to the performance minded automotive community at an affordable price.

09/07/2026
We’ve been getting questions about whether our Gold Lite ECU can run a Hellcat engine. The answer is yes, as long as it’...
09/04/2026

We’ve been getting questions about whether our Gold Lite ECU can run a Hellcat engine.
The answer is yes, as long as it’s paired with 2 specific products.
1. Fabworkz vacuum actuated bypass valve
Which is available at many online retailers
2. Hellcat Drive-By-Cable Conversion Kit
Which is available at the SDG motorsports website.
We have found that this is the simplest and most cost-effective way to run your Hellcat engine with our Gold Lite ECU.
If you have any questions about this conversion please contact us by phone or email!

How big is the Gold Lite compared to a MicroSquirt?It’s one of the questions we hear most often, so we created this actu...
07/30/2026

How big is the Gold Lite compared to a MicroSquirt?

It’s one of the questions we hear most often, so we created this actual physical size comparison showing the overall width, height, and thickness of each ECU.

We hope this helps with planning your next EFI project. If you have questions about either ECU, feel free to contact us!

07/21/2026

EFI Source supplies Goldbox, MegaSquirt, MicroSquirt, LS, Hemi, Harness, and other programmable EFI systems and products o the performance minded automotive community.

Uncle Jeff picking up some hardware yesterday! KISS THE RING‼️
06/21/2026

Uncle Jeff picking up some hardware yesterday! KISS THE RING‼️

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320 S Franklin Street
Boyertown, PA
19512

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