---
product_id: 132751668
title: "Chiptuning Powerbox Performance Enhancer GT-RS3 for S-ubaru Legacy Mk4 2.5i 173PS Petrol Premium Tuning Box with Engine Warranty More Torque - Better Acceleration - Less Consumption"
brand: "racechipgalaxy"
price: "€ 223.53"
currency: EUR
in_stock: true
category: "Automotive"
url: https://www.desertcart.ie/products/132751668-chiptuning-powerbox-performance-enhancer-gt-rs3-for-s-ubaru-legacy
store_origin: IE
region: Ireland
---

# Chiptuning Powerbox Performance Enhancer GT-RS3 for S-ubaru Legacy Mk4 2.5i 173PS Petrol Premium Tuning Box with Engine Warranty More Torque - Better Acceleration - Less Consumption

**Brand:** racechipgalaxy
**Price:** € 223.53
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Chiptuning Powerbox Performance Enhancer GT-RS3 for S-ubaru Legacy Mk4 2.5i 173PS Petrol Premium Tuning Box with Engine Warranty More Torque - Better Acceleration - Less Consumption by racechipgalaxy
- **How much does it cost?** € 223.53 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/132751668-chiptuning-powerbox-performance-enhancer-gt-rs3-for-s-ubaru-legacy)

## Best For

- racechipgalaxy enthusiasts

## Why This Product

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

## Description

Chiptuning ProRacing GT-RS3 Series 30 days non-binding testing Vehicle-specific programming Up to 35% more performance Up to 20% less consumption Software: ProRacingOBD_3_M-GT-RS3 Fully digital performance enhancement Multi-channel technology More torque Higher pulling force Better acceleration. Suitable for start and stop Engine protection programmes unchanged Engine warranty with (SECS system) safety engine control software Suitable for soot particle filters Successful on the market for 15 years Over 500,000 satisfied customers 100% diagnostic neutral ProRacing GT-RS3 Series Chip Tuning Powerful performance, comprehensive security. It contains an exceptionally fast Microchip Atmel processor with new Pro Flash memory. This memory contains a 3D Pro table of contents called a map. The map contains information about fuel injection of the fuel quantity, load pressure, temperature of the supplied air, air density, speed, throttle position and other variable data. We put the programmed device in the cabin of our car into the OBD2 standard diagnostic socket (each car manufactured after 1999 owns). Installation? It doesn&apos;t get any easier! You will be amazed at how quickly and easily the Powerbox can be installed in your vehicle. Even for amateurs, no problem: the included instructions explains in pictures and thanks to the vehicle-specific connectors nothing goes wrong. The Powerbox is already programmed for the respective vehicle type, other settings are not required. Install, start and enjoy the increased driving fun!

## Features

- Chiptuning ProRacing GT-RS3 Pro for Subaru Legacy Mk4 2.5i 173PS Petrol New, better and faster 3.0 Processor: PIC16F59-I / PT (MICROCHIP) Processor type: Flash_Based, 8 bit CMOS "On-Chip" Memory Flash: 2048x12 Perfectly tuned to your vehicle Unbeatable price-performance ratio All new software ProRacingOBD_ON system compatible with the latest technologies in the latest automobile industry with O-RST
- Up to 35% more power and torque 30 days performance test 30 days return policy Thanks to the increased torque of your optimised engine you can save up to 15% fuel DHL Express Free shipping with exclusive next day delivery
- Better acceleration throughout the entire speed range, even at higher gears. Reduces turbo hole and guarantees better acceleration at low speed. No excessive smoking. German installation instructions. You can access them, print them or save them on your mobile phone at any time. With our comprehensive motor protection system guarantee, you are always on the safe side.
- Quick installation within 60 seconds of plug & drive - original plug. Once connected, the vehicle is ready to drive. All driving characteristics and engine protection systems remain unchanged. After removal, the car returns to the default settings.
- Includes ProRacing GT-RS3 Pro Series Chiptuning Module Cable Set Cable Ties User Manual 2 Year Product Warranty With GT-RS3 Pro you can enjoy increased performance without the slightest reservations. We have an absolute priority for maintaining motor safety and engine protection systems. We know how high quality and safe our products are. You benefit directly with our extensive quality and warranty package
- ›See more product details

## Images

![Chiptuning Powerbox Performance Enhancer GT-RS3 for S-ubaru Legacy Mk4 2.5i 173PS Petrol Premium Tuning Box with Engine Warranty More Torque - Better Acceleration - Less Consumption - Image 1](https://images-na.ssl-images-amazon.com/images/I/51RmuAKgWeL.jpg)
![Chiptuning Powerbox Performance Enhancer GT-RS3 for S-ubaru Legacy Mk4 2.5i 173PS Petrol Premium Tuning Box with Engine Warranty More Torque - Better Acceleration - Less Consumption - Image 2](https://images-na.ssl-images-amazon.com/images/I/41acXjJUkjL.jpg)
![Chiptuning Powerbox Performance Enhancer GT-RS3 for S-ubaru Legacy Mk4 2.5i 173PS Petrol Premium Tuning Box with Engine Warranty More Torque - Better Acceleration - Less Consumption - Image 3](https://images-na.ssl-images-amazon.com/images/I/51A967t12GL.jpg)
![Chiptuning Powerbox Performance Enhancer GT-RS3 for S-ubaru Legacy Mk4 2.5i 173PS Petrol Premium Tuning Box with Engine Warranty More Torque - Better Acceleration - Less Consumption - Image 4](https://images-na.ssl-images-amazon.com/images/I/51a9KePKuvL.jpg)
![Chiptuning Powerbox Performance Enhancer GT-RS3 for S-ubaru Legacy Mk4 2.5i 173PS Petrol Premium Tuning Box with Engine Warranty More Torque - Better Acceleration - Less Consumption - Image 5](https://images-na.ssl-images-amazon.com/images/I/41NwGv6Ot0L.jpg)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.ie/products/132751668-chiptuning-powerbox-performance-enhancer-gt-rs3-for-s-ubaru-legacy](https://www.desertcart.ie/products/132751668-chiptuning-powerbox-performance-enhancer-gt-rs3-for-s-ubaru-legacy)

---

*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-20*