Free shipping on orders over $100 Details

Pro-Jection E-Prom

Pro-Jection 4 DI MPFI E-Prom

PART# 534-117

Be the first to write a review
$104.00   Suggested Retail
$92.94   Your Price
Free Shipping on orders over $100*
In Stock  
Add to Wish List


Pro-Jection 4DI MPFI E-Prom


  • E-prom chip.


BrandHolley EFI
Emission Code5
Product TypeEFI Part
Part Number534-117



This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Tech Resources

To download the latest software: 1. Type in (or go to the top of this screen adn click "Technical", then "Resource Documents and Downloads") and scroll down to "Fuel Injection". Click on "Pro-Jection 4Di Tuning Software". It will ask you to "Open" or "Save". Click "Open" and you will see a folder named "4Di Software". Click on this and look for a pdf file named "Instructions to Download". (If you do not have Adobe Reader, you can download it free at Follow these instructions to complete the download. 2. The software is now installed.

    *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.

    Some parts are not legal for use in California or other states with similar regulations.

     X  Roadkill Buick Sweepstakes
     X  Roadkill Buick Sweepstakes