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Terms Of Service

POLICIES

Terms Of Service (TOS)

Last Revised: December 17, 2025

Terms of Service (diamondtp.com)

Welcome to Diamond Tuning & Performance (DTP). By visiting diamondtp.com, booking services, purchasing merchandise, or enrolling in training, you agree to these Terms of Service. Please read them carefully. If you do not agree, do not use the website or services.

Introduction

What these terms are

These Terms of Service (Terms) explain the rules for using our website and doing business with DTP. They apply to website visitors, customers, and anyone purchasing services, merch, or courses from us.

Updates to these terms

We may update these Terms from time to time. When we do, we will post the updated version on this page. If you keep using the website or services after changes are posted, that means you accept the updated Terms.

Services and What We Offer

General services

DTP provides professional automotive services that may include:

  • Performance tuning through HP Tuners

  • ECU and TCU flashing

  • Diagnostics and troubleshooting

  • Dyno tuning or dyno testing when available

  • Custom vehicle solutions and consultation

  • Merchandise sales

  • Tuning courses and training

Service requirements

Some services require specific information before we can begin. That can include your vehicle year, make, model, engine, transmission, current modifications, fuel type, and goals.

If we do not have accurate information, we may not be able to complete the service as scheduled.

Eligibility and Customer Responsibilities

Age requirement

You must be at least 18 years old to book services or make purchases on diamondtp.com unless you have permission from a legal guardian.

Accurate information

You agree to provide accurate, complete information when:

  • Requesting quotes

  • Booking appointments

  • Purchasing services

  • Ordering merch

  • Enrolling in training

Giving incomplete or incorrect information can lead to delays, extra charges, rescheduling, or a refusal of service.

Vehicle access and authorization

If you bring or send a vehicle to us, you confirm you have the legal right to authorize work on that vehicle.

Appointments, Scheduling, and Shop Policies

Appointments and reserved time

Appointments reserve shop time that cannot always be replaced on short notice. Please be on time and prepared.

Late arrivals and missed appointments

If you arrive late, we may have to shorten your appointment, reschedule it, or cancel it depending on the day’s schedule.

If you miss your appointment or no show, you may be charged a fee as listed on the specific service page.

Cancellations and rescheduling

Cancellation and rescheduling fees are listed on each service page on diamondtp.com and apply as written. It is your responsibility to review the service page before booking.

Refusal of service

We reserve the right to refuse or stop service if a vehicle is unsafe, poorly maintained, improperly modified, leaking, overheating, or otherwise not in a condition we believe is safe to work on or tune.

Payments, Pricing, and Taxes

Payment timing

Payment is due at the time of purchase or service unless we specifically agree otherwise in writing.

Pricing changes

Prices can change at any time. The price you pay is the price shown or agreed to at the time you place the order or book the service.

Taxes and fees

Where required, taxes and applicable fees may be added at checkout.

Chargebacks and payment disputes

If something seems wrong with a charge, contact us first. We will work with you to resolve it when possible.

If a chargeback is filed for services already performed or goods already delivered, we may provide documentation to the payment processor including appointment records, messages, order details, logs, or proof of delivery.

Refunds, Returns, and Cancellations

Services and custom work

Tuning, flashing, diagnostics, dyno time, consultation, and other vehicle-specific services are custom. Once work has started or a service has been performed, it is non-refundable.

Service concerns and follow-up

If you believe something is not operating as expected after a service, contact us as soon as possible. We may request logs or additional information to review your concern.

Support is meant to address issues related to the original service, not unlimited revisions for hardware changes, unrelated mechanical issues, or unsafe requests.

Merchandise returns and exchanges

Merchandise return and exchange eligibility depends on the product type and condition.

In general:

  • Items must be unused and unworn to qualify

  • Return windows and requirements apply as listed in our posted policies

  • Some items may be non-returnable due to hygiene, safety, or product type

Merch is fulfilled by Printful unless otherwise noted, and fulfillment rules may affect what can be returned or replaced.

Digital products

Digital products and downloadable items are non-refundable once delivered or accessed, because they cannot be returned.

Training and courses

Tuning courses are eligible for a full refund with a 100 dollar cancellation fee as long as you cancel at least 3 full weeks before the training start date.

Cancellations inside that window may be non-refundable due to scheduling, staffing, and materials.

Vehicle Condition, Risk, and Customer Responsibility

You are responsible for vehicle condition

You are responsible for making sure your vehicle is in safe mechanical condition before tuning, diagnostics, or performance work.

This includes basic things like:

  • No major fluid leaks

  • Healthy ignition and fuel system

  • Proper cooling system function

  • Good battery and charging voltage

  • Safe tires and drivetrain condition

Disclose modifications and important history

You must disclose all relevant modifications and known problems before service. Hidden or undisclosed changes can affect results and safety.

Customer supplied parts

If you provide parts, you are responsible for ensuring they are correct and functional. We are not responsible for failures caused by defective customer-supplied parts.

Pre-existing issues and hidden defects

Performance work can expose weak points. DTP is not responsible for damage caused by pre-existing mechanical issues, improper modifications, poor maintenance, or hidden defects that fail during or after service.

Performance and Results Disclaimer

No guaranteed results

Every vehicle is different. Power gains and results vary based on:

  • Vehicle condition

  • Supporting modifications

  • Fuel quality

  • Weather and altitude

  • Sensor health and calibration limits

  • Traction and drivetrain condition

We do not guarantee a specific horsepower number, torque number, quarter mile time, fuel economy improvement, or reliability outcome.

Racing and aggressive use

If you use your vehicle for racing, towing, off-road, or aggressive driving, you accept increased risk and wear. Tuned vehicles require responsible ownership and maintenance.

Compliance and Legal Notes

Emissions and street legality

You are responsible for complying with local, state, and federal laws regarding emissions equipment and modifications. We do not guarantee that a modified vehicle is street legal everywhere.

Safety decisions

We may refuse requests we believe are unsafe for the vehicle, driver, or public.

Website Rules and Acceptable Use

Intellectual property

All content on diamondtp.com including logos, photos, branding, designs, and written content belongs to DTP or is used with permission. You may not copy, reproduce, distribute, or reuse our content without written permission.

Prohibited uses

You agree not to:

  • Use the website for illegal purposes

  • Attempt to break, disrupt, or overload the site

  • Try to access accounts, checkout, or systems you are not authorized to access

  • Upload malicious code, scripts, or harmful files

  • Misrepresent your identity or vehicle information

  • Use the site to harass, threaten, or abuse others

Privacy

Privacy policy applies

Your use of diamondtp.com is also governed by our Privacy Policy. By using the site, you agree to our collection and use of information as described there.

Limitation of Liability

No liability for certain losses

To the maximum extent allowed by law, DTP is not responsible for:

  • Mechanical failures that occur during or after tuning or performance work

  • Damage caused by pre-existing problems, poor maintenance, or improper modifications

  • Damage caused by customer-supplied parts

  • Loss of use, lost time, lost income, or towing costs

  • Website downtime, checkout errors, or temporary service interruptions

You accept the risks of performance modification

Performance modifications can increase stress on engine, transmission, drivetrain, and supporting components. You understand and accept those risks when you choose performance services.

Termination and Refusal of Service

Our right to refuse service

We may refuse, suspend, or terminate service if a customer:

  • Violates these Terms

  • Behaves in a threatening, abusive, or unsafe way

  • Attempts fraud, chargeback abuse, or deception

  • Requests unsafe work or refuses to follow shop safety rules

Disputes and Governing Law

Wisconsin law

These Terms are governed by the laws of the State of Wisconsin.

Dispute resolution and arbitration

If a dispute comes up, contact us first so we can try to resolve it directly.

If we cannot resolve it, both parties agree to resolve disputes through binding arbitration under the rules of the American Arbitration Association, unless prohibited by law or unless a claim qualifies for small claims court.

Venue

If a dispute must be handled in court for any reason, it will be handled in Wisconsin unless otherwise required by law.

Contact Information

If you have questions about these Terms or anything on diamondtp.com, contact us:

Email: zyler@diamondtp.com

Phone: 920-206-5638

Location: W10710 US-151, Malone, WI

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