California Privacy Notice

Effective Date: January 1, 2026

Last Updated: August 21, 2026

This California Privacy Notice supplements the Privacy Policy of GSC Tuning (“GSC Tuning,” “we,” “us,” or “our”) and applies only to residents of the State of California.

This Notice explains how we collect, use, disclose, retain, and protect personal information of California residents and describes the rights available under applicable California privacy laws.

1. Scope

This California Privacy Notice applies to personal information collected when California residents:

· Visit our website;

· Purchase products from GSC Tuning;

· Create an account;

· Contact customer support;

· Submit product fitment information;

· Subscribe to email or SMS marketing;

· Submit warranty, return, or shipping requests;

· Interact with our advertising, analytics, or social media platforms.

2. Categories of Personal Information We Collect

We may collect the following categories of personal information:

Identifiers

Examples include:

· Name

· Email address

· Phone number

· Billing address

· Shipping address

· IP address

· Account login information

· Online identifiers

· Device identifiers

Commercial Information

Examples include:

· Products purchased

· Products viewed

· Shopping cart activity

· Order history

· Payment status

· Return and refund records

· Warranty claim history

· Customer service communications

Internet or Electronic Network Activity

Examples include:

· Website browsing activity

· Pages viewed

· Products viewed

· Search activity

· Checkout activity

· Clickstream data

· Cookie data

· Advertising interactions

· Device and browser information

Geolocation Information

We may collect approximate location information based on IP address, shipping address, billing address, or device-related data.

Vehicle Fitment Information

When voluntarily provided by you, we may collect vehicle-related information, including:

· Vehicle make

· Model

· Year

· Trim

· Engine type

· Modification details

· VIN

· Fitment-related notes

This information is used to help confirm compatibility and reduce fitment errors.

Inferences

We may create limited inferences based on browsing behavior, purchase history, product interests, or marketing preferences.

3. Sources of Personal Information

We may collect personal information from:

· You directly;

· Your device or browser;

· Our website and checkout system;

· E-commerce platforms;

· Payment processors;

· Shipping carriers;

· Fraud prevention providers;

· Advertising networks;

· Analytics providers;

· Email and SMS marketing providers;

· Social media platforms;

· Customer review platforms.

4. Purposes for Collecting Personal Information

We may collect and use personal information for the following business and commercial purposes:

· Processing orders;

· Shipping products;

· Providing customer support;

· Confirming product fitment;

· Processing returns, refunds, exchanges, and warranty claims;

· Managing customer accounts;

· Detecting and preventing fraud;

· Protecting website security;

· Improving website performance;

· Personalizing customer experience;

· Sending marketing communications;

· Measuring advertising performance;

· Retargeting advertisements;

· Maintaining business records;

· Complying with legal, tax, accounting, and regulatory obligations;

· Enforcing our Terms & Conditions and other policies.

5. Disclosure of Personal Information

We may disclose personal information to service providers, contractors, and business partners, including:

· Shopify or other e-commerce platform providers;

· Payment processors;

· Shipping and logistics providers;

· Fraud prevention services;

· Website hosting providers;

· Analytics providers;

· Advertising platforms;

· Email and SMS marketing providers;

· Customer service providers;

· Review platforms;

· Legal, tax, accounting, and compliance advisors;

· Government authorities where required by law.

6. Sale or Sharing of Personal Information

GSC Tuning does not sell personal information in exchange for money.

However, certain advertising, analytics, retargeting, or tracking technologies may be considered “sharing” personal information under California law because they may involve cross-context behavioral advertising.

California residents may have the right to opt out of the sale or sharing of personal information.

To submit an opt-out request, contact us at:

Email: [Your Business Email]

If available, you may also use a “Do Not Sell or Share My Personal Information” link on our website.

7. Sensitive Personal Information

We do not intentionally collect sensitive personal information unless necessary for limited business purposes or voluntarily provided by you.

We do not use sensitive personal information to infer characteristics about California residents.

8. Data Retention

We retain personal information only for as long as reasonably necessary for the purposes described in this Notice, including:

· Order fulfillment;

· Customer support;

· Warranty and return processing;

· Tax and accounting records;

· Fraud prevention;

· Legal compliance;

· Dispute resolution;

· Business recordkeeping.

Retention periods may vary depending on the type of information and applicable legal requirements.

9. California Privacy Rights

California residents may have the following rights:

Right to Know

You may request information about the categories and specific pieces of personal information we have collected about you.

Right to Access

You may request access to personal information we maintain about you.

Right to Delete

You may request that we delete personal information we have collected from you, subject to certain legal exceptions.

Right to Correct

You may request correction of inaccurate personal information.

Right to Opt Out

You may request to opt out of the sale or sharing of personal information.

Right to Limit Use of Sensitive Personal Information

Where applicable, you may request that we limit the use of sensitive personal information.

Right to Non-Discrimination

We will not discriminate against you for exercising your California privacy rights.

10. How to Exercise Your Rights

To exercise your California privacy rights, contact us at:

GSC Tuning
Email: [Your Business Email]
Website: [Your Website URL]
Business Address: [Your Business Address]

We may need to verify your identity before processing your request.

11. Authorized Agents

California residents may use an authorized agent to submit privacy requests on their behalf.

We may require proof that the agent has authority to act for you and may also require you to verify your identity directly with us.

12. Verification Process

To protect your privacy and security, we may ask for information necessary to verify your identity, such as:

· Name;

· Email address;

· Order number;

· Shipping address;

· Account information.

We will only use verification information to process your privacy request.

13. Financial Incentives

GSC Tuning may offer discounts, promotional codes, loyalty benefits, or marketing incentives.

Participation in promotional programs is voluntary. You may opt out of marketing communications at any time.

14. Changes to This California Privacy Notice

We may update this California Privacy Notice from time to time to reflect changes in our business practices, legal requirements, or technology.

Updates will be posted on this page with a revised “Last Updated” date.

15. Contact Us

For questions about this California Privacy Notice or to exercise your rights, contact us:

GSC Tuning
Email: [Your Business Email]
Website: [Your Website URL]
Business Address: [Your Business Address]