We offer a professional thermostat modification service for performance and racing applications. This service allows you to have the opening temperature of your existing automotive thermostat adjusted to better suit your setup.

Important - Please Read Carefully:

This is a service, not a physical product. You must send your own thermostat to us for modification.

Order Instructions (Required):
At checkout, please add a note with your desired opening temperature (in °C or °F).
Orders without a specified temperature may be delayed.

Shipping Instructions (Required):
When sending your thermostat to us, you must include a note inside the package with:

• Your order number
• Your full name
• Your desired opening temperature (again, for confirmation)
• Description of your car or OEM-part number 

Packages without this information may result in delays or processing errors.

How it works:

1. Place your order through this page
2. Add your desired temperature in the order notes at checkout
3. Ship your thermostat to our address (shipping to us is paid by the customer)
4. Include a note inside the package with your order details and requested temperature
5. We modify the thermostat to your requested specifications
6. We ship the modified thermostat back to you

What can you request:

• Increased opening temperature
• Decreased opening temperature 
• Custom temperature settings (within safe operating limits)

Processing time:

3 to 4 weeks of processing time without the inbound and outbound shipping.

Important notes:

• Make sure your thermostat is clean and in good condition before shipping
• We are not responsible for lost or damaged items during inbound shipping
• If your thermostat is not suitable for modification, we will contact you before proceeding
• If you have any questions pleace contact us via e-mail before purchasing