---
product_id: 481237356
title: "6L80 6L90 8L90 Sure Cool System Upgrade STL010"
brand: "wit whatever it takes transmission parts, inc"
price: "RM401"
currency: MYR
in_stock: true
reviews_count: 5
category: "Wit Whatever It Takes Transmission Parts, Inc"
url: https://www.desertcart.com.my/products/481237356-6l80-6l90-8l90-sure-cool-system-upgrade-stl010
store_origin: MY
region: Malaysia
---

# Built-in safety bypass Immediate fluid level check 20% cooler operating temps 6L80 6L90 8L90 Sure Cool System Upgrade STL010

**Brand:** wit whatever it takes transmission parts, inc
**Price:** RM401
**Availability:** ✅ In Stock

## Summary

> ❄️ Keep your transmission cool, calm, and unstoppable.

## Quick Answers

- **What is this?** 6L80 6L90 8L90 Sure Cool System Upgrade STL010 by wit whatever it takes transmission parts, inc
- **How much does it cost?** RM401 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.my](https://www.desertcart.com.my/products/481237356-6l80-6l90-8l90-sure-cool-system-upgrade-stl010)

## Best For

- wit whatever it takes transmission parts, inc enthusiasts

## Why This Product

- Trusted wit whatever it takes transmission parts, inc brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Plug & Play Upgrade:** Fits all 2014+ 6L80/90E and 2016+ 8L80/90E models for seamless installation.
- • **Instant Fluid Insight:** Check accurate fluid levels immediately—no warm-up wait, no guesswork.
- • **Fail-Safe Flow Control:** Built-in safety bypass ensures continuous cooler flow, preventing costly overheating.
- • **Stay Chill Under Pressure:** Reduces average transmission temps by up to 20%, keeping your ride cool when it counts.
- • **Extended Transmission Life:** Lower operating temps mean longer ATF life and fewer maintenance headaches.

## Overview

The WIT WHATEVER IT TAKES STL010 Sure Cool System Upgrade is a precision-engineered cooler flow bypass valve kit designed for 2014+ 6L80/90E and 2016+ 8L80/90E transmissions. It features patented Flow~Control technology that reduces operating temperatures by up to 20%, provides immediate and accurate fluid level checks without warm-up, and includes a built-in safety bypass to prevent overheating—extending transmission fluid life and enhancing reliability under load.

## Description

Superior STL010 Fits all 2014-up 6L80/90E AND NOW FITS 8L80/90E 2016-up Superior’s Cooler Flow bypass valve kit with TransLab’s patented and patent pending Flow~Control cooler bypass technologies allows full time cooler flow and lube to parts “so you’re not hot under the collar”…you’re SURE~COOL

Review: Good - Good
Review: exelente - buen producto cumple con su funcion

## Features

- Built in safety bypass
- Immediate cooler fill
- Immediate accurate fluid level check without warm-up cycle
- Reduced average operating temperatures by as much as 20%
- Reduced risk of overheat while under load, Increased ATF life.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BCL9M23T |
| Best Sellers Rank | #15,368 in Automotive ( See Top 100 in Automotive ) #4 in Automotive Engine Cooling & Heating Coolers |
| Brand | WIT WHATEVER IT TAKES TRANSMISSION PARTS, INC |
| Customer Reviews | 4.8 4.8 out of 5 stars (1,429) |
| Date First Available | 9 October 2022 |
| Item Weight | 110 g |
| Item model number | STL010 |
| Manufacturer | Superior |
| Manufacturer Part Number | STL010 |
| Model | COOLER FLOW BYPASS |
| Product Dimensions | 10.16 x 10.16 x 2.54 cm; 110 g |

## Images

![6L80 6L90 8L90 Sure Cool System Upgrade STL010 - Image 1](https://m.media-amazon.com/images/I/61C9sS0UHhL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good
*by M***D on 29 July 2024*

Good

### ⭐⭐⭐⭐⭐ exelente
*by J***R on 30 October 2025*

buen producto cumple con su funcion

### ⭐⭐⭐⭐⭐ Straight forward quality product.
*by C***E on 28 July 2026*

Works well. Lowered my temps by about 10-20 degrees. Especially works well when the day is cooler. It didn't lower it the 50 degrees like you'll hear people talk about, but for 59 bucks 15 degrees is worth it. Easy installation, straight forward instructions.

## Frequently Bought Together

- WIT WHATEVER IT TAKES TRANSMISSION PARTS, INC 6L80 6L90 8L90 Sure Cool System Upgrade STL010
- atp automotive B-239 Automatic Transmission Filter Kit for GM Optional 6L80 Heavy-Duty 6-Speed Transmission
- ACDelco GM Original Equipment 10-9395 Dexron VI Automatic Transmission Fluid - 1 gal

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**Shop now:** [https://www.desertcart.com.my/products/481237356-6l80-6l90-8l90-sure-cool-system-upgrade-stl010](https://www.desertcart.com.my/products/481237356-6l80-6l90-8l90-sure-cool-system-upgrade-stl010)

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*Product available on Desertcart Malaysia*
*Store origin: MY*
*Last updated: 2026-08-19*