Aces EFI Upgrade Program
August 10 – September 30, 2026
This program has ended.
Upgrade your old carburetor or EFI system and receive up to $400 Upgrade Credit toward a new Aces EFI system.
A limited-time opportunity to upgrade to smarter EFI technology with exclusive Upgrade Credit on eligible systems.
- Up to $400 Upgrade Credit
- No Trade-In Required
- Reviewed Within 1 Business Day
Easier Installation
Designed for enthusiasts and weekend builders with an easy-to-install system.
Self-Learning Technology
Automatically adjusts and optimizes fueling while you drive.
Better Performance
Improved throttle response, smoother drivability, and reliable cold starts.
Built for Real Drivers
Perfect for classic cars, muscle cars, trucks, Jeeps, and street rods.
Is This Program Right for You?
If you're currently running any of the following systems, you're likely eligible for the Aces EFI Upgrade Program:
- Carburetor
- Older TBI System
- Holley EFI
- FiTech EFI
- Edelbrock EFI
- FAST EFI
- MSD Atomic EFI
Not sure if you qualify? Apply anyway—we'll review your submission and let you know.
Upgrade in 4 Easy Steps
1
Apply Online
Complete the application form and upload photos of your current fuel system.
2
Apply Online
We'll review your submission within 1 business day.
3
Apply Online
A unique one-time discount code will be sent to your email.
4
Apply Online
Use your Upgrade Credit on eligible Aces EFI systems.
Eligible Upgrade Systems
Suitable for customers upgrading from carburetors or older TBI systems.
Upgrade Credit is available on the following premium Aces EFI systems.
Killshot Series
Maximum Performance & Drivability
Wild Card and The Joker systems qualify for Tier 1 and Tier 2 Upgrade Credit.
Multi-Port EFI Series
SAVE $1,390
SAVE $1,580Activity Rules
Please review the following program rules before submitting your application:
- Program Period: August 10 – September 30, 2026
- Tier 1: Current Carburetor / Older TBI → $300 Upgrade Credit
- Tier 2: Competitor EFI → $400 Upgrade Credit
- Verification: Upload photos of your current system
- Trade-In Required: No
- Approval Time: Within 1 Business Day
- Discount Code: One-Time Use Only
- Promotions: Cannot be combined with other offers
- Eligible Products: Qualified Master Kits & MPFI Systems Only
Frequently Asked Questions
Do I need to send in my old carburetor or EFI system?
No. Simply upload photos during the application process.
How long does approval take?
Most applications are reviewed within 1 business day.
Can I combine this Upgrade Credit with other promotions?
No. Upgrade Credit cannot be combined with any other discounts or promotional offers.
Which products qualify?
Only eligible Killshot Master Kits and MPFI systems listed on this page qualify.
Can I apply if my current EFI is from another brand?
Yes. Holley, FiTech, Edelbrock, FAST, MSD Atomic EFI, and other competitor EFI systems are eligible for Tier 2 Upgrade Credit.
How will I receive my Upgrade Credit?
After approval, you'll receive a unique one-time discount code by email.
Apply for Your Upgrade Credit
Complete the form below and upload photos of your current system. Our team will review your application and contact you within 1 business day.
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Step-by-step Wild Card MPFI installation walkthrough from the Aces team.
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Complete The Joker MPFI system install on a classic C-10 build.
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