Draft. This document is being reviewed and may change before it takes effect.

The EFI Brain™ Terms of Service

Last updated: November 2, 2026 · Effective date: when published

These Terms of Service ("Terms") are a binding agreement between Horsepower Connections LLC, an Arizona limited liability company doing business as The EFI Store ("Company", "we", "us" or "our"), and the person or organization that accesses or uses The EFI Brain ("you" or "your").

BY SIGNING IN TO OR OTHERWISE USING THE SERVICE, YOU AGREE TO THESE TERMS AND TO OUR PRIVACY POLICY. If you do not agree, do not use the Service. If you use the Service for a company or other organization, you confirm that you can bind it to these Terms, and "you" includes it.

1. Definitions

"Service" means The EFI Brain, an artificial-intelligence-powered electronic fuel injection (EFI) knowledge base and technical assistant made available by Company as hosted software, with its website, interfaces and documentation.
"Knowledge Base" means the EFI reference material, catalogs, calibrations, documentation and other content Company has compiled and uses to answer questions through the Service.
"Output" means any answer, text, data or other material the Service returns.
"Access Code" means the personal sign-in code Company issues to one named person.
"Authorized User" means the one person an Access Code is issued to.
"Subscription" means a paid plan for access to the Service, if you buy one.
"Your Content" means the questions and other content you submit to the Service.

2. Access

Subject to these Terms, Company grants you a limited, non-exclusive, non-transferable, non-sublicensable and revocable license to use the Service for your own internal business or personal purposes while your access is active. The Service is hosted software; no copy of the Knowledge Base or the software is sold or delivered to you. All rights not expressly granted are reserved by Company.

Access is personal. Each Access Code is issued to one named Authorized User and may not be shared, posted, transferred or used by anyone else. You are responsible for all activity under your Access Code and must tell Company right away if it is lost, shared or exposed. Company may issue, change, limit or withdraw any Access Code at any time, and a withdrawn or changed Access Code stops working immediately.

Limited access. Company may limit an Access Code to certain brands, topics or daily amounts (for example, for a manufacturer demonstration). The Service will decline questions outside those limits.

Invitation and pilot access. While the Service is offered by invitation, access is provided free of charge unless Company agrees otherwise in writing, and Company may end it at any time. Sections 4 and 5 apply only once you buy a Subscription.

3. AI-generated information; no professional advice; verify before you act

PLEASE READ THIS SECTION CAREFULLY. IT LIMITS HOW YOU MAY RELY ON THE SERVICE.

The Service uses artificial intelligence to generate Output from the Knowledge Base. The Knowledge Base is drawn from sources Company considers credible, and the Service is designed to say when it cannot confirm something from its sources. Even so, artificial intelligence can and does make mistakes. Output may be inaccurate, incomplete, outdated or not right for your application. Always check Output against the manufacturer's current instructions and specifications before relying on it.

Output is general information only. It is not a substitute for the judgment of a qualified tuner, technician or engineer, and it is not an approval, certification or warranty by any manufacturer.

EFI installation, wiring, fuel-system work and tuning (including ignition timing, air/fuel ratio, boost, nitrous and fuel delivery) are inherently risky. If done wrong they can cause engine damage, fire, property damage, serious injury or death. You assume all risk from your use of the Output. No engine, vehicle or component should be built, wired, configured or operated based only on Output from the Service.

4. Subscriptions, fees and renewal

(a) Fees. You agree to pay the fees for the plan you choose, as shown when you buy it. Fees are in U.S. dollars and do not include taxes, which are your responsibility.
(b) Automatic renewal. Monthly Subscriptions are billed in advance and renew automatically for the same period until cancelled. By subscribing, you authorize Company and its payment processor to charge your payment method on each renewal date until you cancel.
(c) Fixed-term access. Plans sold for a fixed term (for example, 30 days) end at the end of that term without further charge unless offered as renewing at checkout.
(d) Payment processing. Payments are handled by a third-party processor. You must keep your payment information accurate and current.
(e) Price changes. Company may change prices going forward with reasonable advance notice. A price increase takes effect at your next renewal.
(f) Failed payment. If a payment fails, Company may suspend or end your access until it is resolved.

5. Cancellation and refunds

You may cancel a Subscription at any time by contacting Company. Cancellation takes effect at the end of the current billing period, and you keep access until then. Except where the law requires otherwise, fees are non-refundable, and Company does not give refunds or credits for partial periods or unused time.

6. Acceptable use

You agree that you will not, and will not let anyone else:

(a) reverse engineer, decompile, scrape, crawl, bulk-export or systematically download the Knowledge Base or Output, or try to reconstruct or compile a substantial part of the Knowledge Base;
(b) use the Service or Output to develop, train or improve any competing product, service, dataset or machine-learning model;
(c) resell, sublicense, rent, share or otherwise make the Service available to anyone who is not an Authorized User;
(d) get around any usage limit, brand or topic limit, access control or security feature of the Service;
(e) use the Service against the law, or send malware or harmful code;
(f) present Output as a certified, approved or professionally validated recommendation, or misrepresent your relationship with Company or with any manufacturer;
(g) use the Service by automated means, including bots, scripts, scrapers, crawlers, headless browsers, or AI agents or assistants acting for you, other than an interface Company expressly provides for that purpose;
(h) try to obtain, extract or reveal the Knowledge Base, the Service's instructions or prompts, the names or structure of its source files, or any non-public part of the Service, including by instructing or tricking the Service into reproducing documents, tables, lists or its own instructions;
(i) submit questions in a pattern meant to list out or rebuild the Knowledge Base, such as sequential, exhaustive or repeated requests for part numbers, tables or documents;
(j) copy, republish or redistribute Output in bulk or in any form that replaces or competes with the Service (using individual answers to help your own customers or projects is allowed);
(k) remove or hide any confidentiality, proprietary or copyright notice; or
(l) probe, scan or test the security of the Service without Company's written permission. Please report any weakness you find to Company. Good-faith reports made without accessing others' data or disrupting the Service will not be treated as a breach.

7. Monitoring, limits, feedback and enforcement

Monitoring. Company records use of the Service, including each question and answer, who asked, when, and from what network address, to run and secure the Service, enforce these Terms, detect misuse and improve the Knowledge Base. You consent to this monitoring. The Privacy Policy explains what is kept and for how long.

Limits. Company may set and change limits on the number and size of questions and answers, and may interrupt, shorten or refuse any answer, including automatically, for example when an answer appears to reproduce the Knowledge Base or falls outside the brands or topics your Access Code covers.

Questions the Service cannot answer, and flagged answers. When the Service cannot confirm an answer from the Knowledge Base, or when you use the "Flag it" link to mark an answer as wrong or not useful, Company keeps that question and answer so it can research the gap and improve the Knowledge Base.

Feedback. If you give Company feedback, suggestions, corrections or flags, Company may use them to improve the Service and the Knowledge Base without restriction or payment to you.

Enforcement. If Company reasonably believes you have broken Section 6, it may suspend or end your access immediately without notice or refund, keep and use the related records as evidence, and seek any remedy available by law. You agree that a breach of Section 6 or Section 9 would cause harm that money cannot fully repair, and that Company may seek an injunction without posting a bond.

8. Intellectual property and other companies' names

As between you and Company, Company owns the Service, the Knowledge Base and all related intellectual property, including improvements. The Knowledge Base is a compilation Company has invested heavily to build; copyright and other rights in how it is selected, organized and written belong to Company, even where individual facts in it are public. You may use Output for your own internal business or personal purposes.

Manufacturer names, product names and part numbers belong to their owners and are used only to identify products. The EFI Brain is not affiliated with, sponsored by or endorsed by any manufacturer it discusses unless Company says so in writing.

9. Confidentiality

The Knowledge Base, the Service's non-public features and anything Company marks or describes as confidential are Company's confidential information. You will protect it with at least reasonable care and use it only to use the Service under these Terms. This does not apply to information that is public through no fault of yours, that you already lawfully knew, that you develop independently, or that the law requires you to disclose.

10. Security

Company uses commercially reasonable safeguards to protect the Service and your information, but no system is completely secure. Keep your Access Code confidential, use only devices you control, and sign out of shared devices. Company may require you to change your Access Code at any time. The Privacy Policy is part of these Terms.

11. Third-party services

The Service relies on third-party services, including an artificial-intelligence provider (currently Anthropic), a hosting provider and, for Subscriptions, a payment processor. Company is not responsible for their acts, availability or performance.

12. Disclaimer of warranties

THE SERVICE AND ALL OUTPUT ARE PROVIDED "AS IS" AND "AS AVAILABLE", WITHOUT WARRANTY OF ANY KIND. TO THE FULLEST EXTENT THE LAW ALLOWS, COMPANY DISCLAIMS ALL WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, INCLUDING MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, NON-INFRINGEMENT, AND ANY WARRANTY ABOUT THE ACCURACY, RELIABILITY, COMPLETENESS OR TIMELINESS OF OUTPUT, OR THAT THE SERVICE WILL BE UNINTERRUPTED, SECURE OR ERROR-FREE.

13. Limitation of liability

TO THE FULLEST EXTENT THE LAW ALLOWS, COMPANY AND ITS OWNERS, OFFICERS AND AGENTS ARE NOT LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, EXEMPLARY OR PUNITIVE DAMAGES, OR FOR ANY ENGINE, VEHICLE, EQUIPMENT OR PROPERTY DAMAGE, PERSONAL INJURY, LOST PROFITS, LOST DATA OR BUSINESS INTERRUPTION, ARISING FROM THE SERVICE OR ANY OUTPUT, ON ANY LEGAL THEORY, EVEN IF ADVISED OF THE POSSIBILITY. COMPANY'S TOTAL LIABILITY ARISING FROM THESE TERMS OR THE SERVICE WILL NOT EXCEED THE GREATER OF (A) THE FEES YOU PAID COMPANY FOR THE SERVICE IN THE 12 MONTHS BEFORE THE EVENT GIVING RISE TO THE CLAIM, OR (B) ONE HUNDRED U.S. DOLLARS ($100). SOME JURISDICTIONS DO NOT ALLOW SOME OF THESE LIMITS, SO THEY MAY NOT ALL APPLY TO YOU.

14. Indemnification

You agree to defend, indemnify and hold harmless Company and its owners, officers and agents from any claims, damages, losses and expenses (including reasonable attorneys' fees) arising from: (a) your use of the Service or any Output; (b) any decision or action you take relying on Output; (c) Your Content; or (d) your breach of these Terms or of any law or third-party right.

15. Term, suspension and termination

These Terms apply from your first use and while you have access. You may stop using the Service at any time. Company may suspend or end your access at any time, including immediately if you break these Terms, fail to pay, or use the Service in a way that risks harm to Company or others. When access ends, your license ends and no refund is owed except as the law requires. Sections 3 and 6 through 18 survive the end of these Terms.

16. Changes

Company may change, update or discontinue features of the Service at any time. Company may update these Terms; the new version will be posted with a new "Last updated" date, and material changes will be communicated by reasonable means. Using the Service after a change takes effect means you accept it.

17. Governing law, venue and jury waiver

These Terms are governed by the laws of the State of Arizona, without regard to its conflict-of-laws rules. The exclusive venue for any dispute arising from these Terms or the Service is the state courts in Mohave County, Arizona, or the federal courts in the District of Arizona, and both parties consent to those courts' jurisdiction. To the extent the law allows, each party waives any right to a jury trial. In any action to enforce these Terms, the winning party may recover reasonable attorneys' fees and costs.

18. General

These Terms, the Privacy Policy and any plan details shown at purchase are the entire agreement about the Service and replace any earlier understandings. If any provision is unenforceable, it will be changed only as much as needed and the rest stays in effect. Not enforcing a provision is not a waiver. You may not assign these Terms without Company's written consent; Company may assign them in a merger, acquisition or sale of assets. Neither party is liable for delays caused by events beyond its reasonable control. These Terms do not create a partnership, joint venture, agency or employment relationship.

19. Contact

Horsepower Connections LLC (dba The EFI Store)
55 Lake Havasu Avenue F392, Lake Havasu City, AZ 86403
Email: horsepowerconnection@gmail.com · Web: theefistore.com