---
product_id: 55341663
title: "SLP Performance M31040 Catalytic Converters High-Flow (pair)"
brand: "slp performance"
price: "€ 844.82"
currency: EUR
in_stock: true
category: "Automotive"
url: https://www.desertcart.fi/products/55341663-slp-performance-m31040-catalytic-converters-high-flow-pair
store_origin: FI
region: Finland
---

# SLP Performance M31040 Catalytic Converters High-Flow (pair)

**Brand:** slp performance
**Price:** € 844.82
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** SLP Performance M31040 Catalytic Converters High-Flow (pair) by slp performance
- **How much does it cost?** € 844.82 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/55341663-slp-performance-m31040-catalytic-converters-high-flow-pair)

## Best For

- slp performance enthusiasts

## Why This Product

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

## Description

SLP Performance M31040 Catalytic Converters High-Flow (pair). Product Dimension (LxWxH): 20.3x14.4x6.8.

## Features

- SLP Performance M31040 Catalytic Converters High-Flow (pair)
- Product Dimension (LxWxH): 20.3x14.4x6.8

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | SLP Performance Parts |
| Brand | SLP |
| Model | M31040 |
| Item Weight | 4 pounds |
| Product Dimensions | 20.3 x 14.8 x 6.5 inches |
| Item model number | M31040 |
| Is Discontinued By Manufacturer | No |
| Exterior | Smooth |
| Manufacturer Part Number | M31040 |
| OEM Part Number | M31040 |

## Images

![SLP Performance M31040 Catalytic Converters High-Flow (pair) - Image 1](https://images-eu.ssl-images-amazon.com/images/I/41gFo6ATMYL.jpg)

## Questions & Answers

**Q: Does the flow direction matter? And if so how do you tell which way to mount them?**
A: No it should not matter which direction. I wasn't sure either but my mechanic said it works both ways. Hope this helps.

**Q: Do these actually last or do they blow out?  What size engine are they rated for?**
A: They were on a custom 72 ls1 Nova. They seemed like good quality. I sold the car after installing. Not sure longevity

**Q: Do these cats have a serial or ID number engraved on the housing?**
A: I no longer have the car but I don’t recall

**Q: Do they fit a 2013 mustang gt?**
A: So long as it is a 2.5" exhaust and the system has room to fit the catalytic converter's size: 12" long, 5" wide.

---

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**Shop now:** [https://www.desertcart.fi/products/55341663-slp-performance-m31040-catalytic-converters-high-flow-pair](https://www.desertcart.fi/products/55341663-slp-performance-m31040-catalytic-converters-high-flow-pair)

---

*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-05-24*