---
product_id: 46904893
title: "Invidia HS15STIGM4ST Exhaust System (Back Exhaust2015+ Subaru WRX/Sti Gemini/R400 Single Layer Quad Titanium Tip Cat)"
brand: "invidia"
price: "€ 3525.58"
currency: EUR
in_stock: true
url: https://www.desertcart.gr/products/46904893-invidia-hs15stigm4st-exhaust-system-back-exhaust2015-subaru-wrx-sti-gemini
store_origin: GR
region: Greece
---

# Optimized gas flow for power Boosts horsepower noticeably 4-inch stainless steel bell mount Invidia HS15STIGM4ST Exhaust System (Back Exhaust2015+ Subaru WRX/Sti Gemini/R400 Single Layer Quad Titanium Tip Cat)

**Brand:** invidia
**Price:** € 3525.58
**Availability:** ✅ In Stock

## Summary

> 💥 Ignite your Subaru’s potential with Invidia’s powerhouse exhaust!

## Quick Answers

- **What is this?** Invidia HS15STIGM4ST Exhaust System (Back Exhaust2015+ Subaru WRX/Sti Gemini/R400 Single Layer Quad Titanium Tip Cat) by invidia
- **How much does it cost?** € 3525.58 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/46904893-invidia-hs15stigm4st-exhaust-system-back-exhaust2015-subaru-wrx-sti-gemini)

## Best For

- invidia enthusiasts

## Why This Product

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

## Key Features

- • **Iconic Style:** Quad titanium tips deliver a sleek, aggressive look that turns heads
- • **Seamless Fit:** Designed specifically for 2015+ Subaru WRX/STI for perfect OEM compatibility
- • **Power Unleashed:** Easily adds several horsepower over stock exhaust
- • **Precision Engineering:** Large 4-inch stainless steel bell mount maximizes exhaust flow
- • **Lightweight Durability:** High-quality materials ensure long-lasting performance at just 49.5 lbs

## Overview

The Invidia HS15STIGM4ST Exhaust System is a precision-engineered upgrade for 2015+ Subaru WRX/STI models, featuring a large 4-inch stainless steel bell mount and quad titanium tips. It significantly boosts horsepower by optimizing exhaust gas flow while maintaining lightweight durability and perfect OEM fitment.

## Description

InvidiaHS15STIGM4ST Exhaust System (Back Exhaust2015+ Subaru WRX/Sti Gemini/R400 Single Layer Quad Titanium Tip Cat)

## Features

- The Invidia pipe Offers an alternative to other power-boosting enhancements
- A quick look at its dyno chart shows it easily added several horse-power units to the stock exhaust system
- Each Invidia pipe features a large 4-in stainless-steel Bell mount to enhance power by freeing excess gas

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Invidia |
| UPC | 619775374171 |
| OEM Part Number | HS15STIGM4ST |
| Item Weight | 49.5 pounds |
| Item model number | HS15STIGM4ST |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | HS15STIGM4ST |

## Product Details

- **Brand:** Invidia
- **Material:** Stainless Steel
- **Vehicle Service Type:** Car
- **Shape:** Round
- **Installation Type:** Bolt-On

## Images

![Invidia HS15STIGM4ST Exhaust System (Back Exhaust2015+ Subaru WRX/Sti Gemini/R400 Single Layer Quad Titanium Tip Cat) - Image 1](https://m.media-amazon.com/images/I/61Qpq-aNfYL.jpg)

## Questions & Answers

**Q: Will it fit Subaru Forester 2011 2.5T?**
A: Im not sure i installed mine on a 2017 sti

**Q: Will my wrx have any problems passing smog test with this**
A: Nope. Not at all. The exhaust does not affect smog certification nor does it avoid factory warranty. The full catback exhaust is post cat which is where the o2 sensors are located. 

Also, this exhaust sounds amazing. Not too loud while driving. You only hear it when you smash on the pedal and there is no drown so you are able to listen to your music or talk to your passengers.

**Q: Do I need 4 inches down pipe for the r400 cutback**
A: No you can still have your stock downpipe with the 3 inch invidia exaust. All you have to do is buy the grimmspeed adapter and everything will be perfect

**Q: My exhaust is arriving today and my grimspeed adapter is arriving next week. Cant wait to install this thing. Is the adapter required to install r400?**
A: Yes it is and trust me its worth the wait

## Frequently Bought Together

- Invidia HS15STIGM4ST Exhaust System (Back Exhaust2015+ Subaru WRX/Sti Gemini/R400 Single Layer Quad Titanium Tip Cat)
- Subaru Genuine Exhaust Donut Gasket - 44022AA123

---

## 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.gr/products/46904893-invidia-hs15stigm4st-exhaust-system-back-exhaust2015-subaru-wrx-sti-gemini](https://www.desertcart.gr/products/46904893-invidia-hs15stigm4st-exhaust-system-back-exhaust2015-subaru-wrx-sti-gemini)

---

*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-01-29*