---
product_id: 119965255
title: "MMTS-GTI-99 Racing Thermostat Compatible With Audi A4 1.8T 1997-2001 / TT 1.8T/3.2L 2000-2006"
brand: "mishimoto"
price: "€ 114.21"
currency: EUR
in_stock: true
url: https://www.desertcart.pt/products/119965255-mmts-gti-99-racing-thermostat-compatible-with-audi-a4-1
store_origin: PT
region: Portugal
---

# Lifetime warranty Direct fit design Lower activation temp MMTS-GTI-99 Racing Thermostat Compatible With Audi A4 1.8T 1997-2001 / TT 1.8T/3.2L 2000-2006

**Brand:** mishimoto
**Price:** € 114.21
**Availability:** ✅ In Stock

## Summary

> 🏎️ Cool down your ride and rev up your performance!

## Quick Answers

- **What is this?** MMTS-GTI-99 Racing Thermostat Compatible With Audi A4 1.8T 1997-2001 / TT 1.8T/3.2L 2000-2006 by mishimoto
- **How much does it cost?** € 114.21 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/119965255-mmts-gti-99-racing-thermostat-compatible-with-audi-a4-1)

## Best For

- mishimoto enthusiasts

## Why This Product

- Trusted mishimoto brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Enjoy peace of mind with Mishimoto's lifetime warranty, a testament to quality and durability.
- • **Join the Racing Elite:** Upgrade your vehicle with a racing thermostat that not only performs but also elevates your car's status.
- • **Seamless Compatibility:** Designed for a direct fit in 1999-2005 Volkswagen GTi 1.8T models, ensuring hassle-free installation.
- • **Enhanced Cooling Efficiency:** Maintain optimal engine performance by allowing coolant to flow earlier, reducing the risk of overheating.
- • **Optimize Your Engine's Performance:** Experience cooler temperatures with a thermostat that activates at 82.22°C, compared to the stock 87°C.

## Overview

The Mishimoto MMTS-GTI-99 Racing Thermostat is engineered for direct compatibility with Audi A4 1.8T (1997-2001) and TT 1.8T/3.2L (2000-2006). It activates at a lower temperature of 82.22°C, promoting efficient coolant flow and maintaining optimal engine temperatures. Backed by a lifetime warranty, this thermostat is a must-have for performance enthusiasts.

## Description

MMTS-GTI-99 Racing Thermostat Compatible With Audi A4 1.8T 1997-2001 / TT 1.8T/3.2L 2000-2006

## Features

- Direct fit for the 1999-2005 Volkswagen GTi 1.8T
- Lower activation temperature allows coolant to flow through the engine Earlier, maintaining Lower temperatures (Mishimoto thermostat activates at 82.22°C VS. Stock 87°c)
- Mishimoto lifetime Warranty

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Mishimoto |
| Model Name | MMTS-GTI-99 |
| Color | Mmts-gti-99 |
| Included Components | Automotive Parts |
| Item Weight | 0.09 Kilograms |
| Control Type | Button Control |
| Backlight | No |
| UPC | 748354026986 |
| Global Trade Identification Number | 00748354026986 |
| Manufacturer | Mishimoto |
| Item Weight | 3.17 ounces |
| Product Dimensions | 3 x 3 x 3 inches |
| Country of Origin | China |
| Item model number | MMTS-GTI-99 |
| Is Discontinued By Manufacturer | No |
| Exterior | Machined |
| Manufacturer Part Number | MMTS-GTI-99 |
| OEM Part Number | 050121113C |

## Images

![MMTS-GTI-99 Racing Thermostat Compatible With Audi A4 1.8T 1997-2001 / TT 1.8T/3.2L 2000-2006 - Image 1](https://m.media-amazon.com/images/I/4136so8GgrL.jpg)

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**Shop now:** [https://www.desertcart.pt/products/119965255-mmts-gti-99-racing-thermostat-compatible-with-audi-a4-1](https://www.desertcart.pt/products/119965255-mmts-gti-99-racing-thermostat-compatible-with-audi-a4-1)

---

*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-03-17*