---
title: "Automotive Exhaust System Repair — NAICS 811112"
url: "https://vantainsights.com/industry/811112-automotive-exhaust-system-repair"
naics: "811112"
naics_frame: "2017"
updated: "2026-10-22"
---

# Automotive Exhaust System Repair

NAICS 811112

## Key Figures

| Figure | Value | Source | Year |
| --- | --- | --- | --- |
| Establishments | 1,245 | Census CBP | 2023 |
| Employment | 4,001 | Census CBP | 2023 |
| Market size | $718.9M | Census Economic Census, comparative statistics on the NAICS 2017 definition | 2022 |

Figures are published for NAICS 811112 directly.

## Official definition

This U.S. industry comprises establishments primarily engaged in replacing or repairing exhaust systems of automotive vehicles, such as passenger cars, trucks, and vans.

Source: US Census Bureau, 2017 NAICS Definitions. Public domain.

## Illustrative examples

- Automotive exhaust system replacement and repair shops
- Automotive muffler replacement and repair shops

## Which code does this activity belong in?

Establishments classified in NAICS 811112 specialize exclusively in exhaust system work, including muffler replacement and repair. This code is distinct from General Automotive Repair, which covers businesses providing a wide range of mechanical and electrical services or specializing in engine repair. Exhaust system specialists differ from those in Other Automotive Mechanical and Electrical Repair and Maintenance, which covers specialized repair of brakes, radiators, electrical systems, and tune-ups, but not exhaust systems. Transmission repair specialists are classified separately in their own code.

*VantaInsights Analysis, AI-drafted.*

## Where this sits

- [81 Other Services (except Public Administration)](https://vantainsights.com/industry/81-other-services)
- [811 Repair and Maintenance](https://vantainsights.com/industry/811-repair-maintenance)
- [8111 Automotive Repair and Maintenance](https://vantainsights.com/industry/8111-automotive-repair-maintenance)
- [81111 Automotive Mechanical and Electrical Repair and Maintenance](https://vantainsights.com/reports/81111-general-automotive-repair)

## Related classifications

- [811111 General Automotive Repair](https://vantainsights.com/industry/811111-general-automotive-repair)
- [811113 Automotive Transmission Repair](https://vantainsights.com/industry/811113-automotive-transmission-repair)
- [811118 Other Automotive Mechanical and Electrical Repair and Maintenance](https://vantainsights.com/industry/811118-other-automotive-mechanical-electrical-repair-maintenance)

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