Warranty

Warranty Policy

Standard Limited Warranty

All Aces Fuel Injection products include a limited one (1) year warranty against defects in materials or workmanship from the original date of purchase.

This warranty is extended to the original consumer only and is not assignable or transferable. Proof of purchase is required for all warranty claims.

3-Year Limited Warranty (Registered Products)

Coverage

The 3-Year Limited Warranty applies to the following electronic components:

• Engine Control Unit (ECU)
• Throttle Body Injection (TBI) Throttle Body
• Transmission Control Unit (TCU)
• Capacitor Discharge Ignition (CDI) Box
• Future electronic expansion modules

Registration Requirement

To activate the 3-Year Limited Warranty, customers must register their product within 90 days of the purchase date.

Registration Process

Customers must visit www.acesefi.com/pages/warranty-registration and complete the product registration form, providing the following information:

• Proof of purchase (receipt or invoice)
• Product serial number
• Customer contact information (name, address, email, phone number)

Failure to register within the specified timeframe will result in coverage defaulting to the standard one-year limited warranty, if applicable.

The 3-Year Limited Warranty adheres to Aces EFI’s standard warranty terms and refund policies.

Warranty Exclusions

This warranty does not apply to products that have been:

• Modified or altered from factory condition
• Subjected to misuse, neglect, accident, improper installation, or improper adjustment
• Exposed to dirt, contaminants, water intrusion, corrosion, or other adverse conditions
• Installed in applications not recommended by Aces Fuel Injection

Warranty Limitations

In the event of a verified defect in materials or workmanship, Aces EFI’s sole responsibility is to repair or replace the affected product, at its discretion.

Aces EFI assumes no other expressed or implied obligations. Final determination of all warranty claims rests solely with Aces EFI.

Aces EFI shall not be responsible for:

• Labor, transportation, or related charges
• Consequential, incidental, or other damages resulting from the use of any Aces EFI product

Technical Support Disclaimer

Our Technical Support Department will make a reasonable effort to provide assistance related to Aces EFI products.

Support may include:

• Installation guidance for Aces EFI systems
• Fuel system and wiring recommendations
• Best practices to avoid voltage issues or fuel system restrictions
• Basic adjustments using the Handheld unit
• General guidance for advanced tuning software

Support for third-party products not engineered to work directly with Aces EFI systems is limited.

Tuning Disclaimer

Aces EFI systems utilize an advanced self-learning fuel correction strategy. When installed using best practices and configured for a specific engine combination, the system uses O₂ sensor feedback to adjust air-fuel ratios based on user-defined targets.

If basic mechanical and Handheld adjustments are insufficient, Aces EFI may recommend an authorized tuner. Authorized tuners are independent third parties approved by management for their familiarity with Aces EFI systems. They do not work for Aces EFI, and all tuning services are outside the scope of this warranty. Tuning costs are set by the tuner.