---
title: Ultra EPA Direct Fit Catalytic Converter
url: https://www.napaonline.com/en/p/EXH16591
description: Buy Ultra EPA Direct Fit Catalytic Converter - EXH 16591 online from NAPA Auto Parts Stores. Get deals on automotive parts, truck parts and more.
---

# Ultra EPA Direct Fit Catalytic Converter

## Features & Benefits

Warranty:
Standard : 25,000 miles or (40,000 kilometers) - External catalytic converter body, including end tubes, is warranted separately for 5 years or 50,000 miles (80,000 kilometers) whichever comes first. See installation instructions for details.

- **EPA COMPLIANT** -- Designed for use on OBDII vehicles, 1996 & newer. Not legal for sale or use in California, Colorado, or New York. Legal in Maine on EPA Federal Emission Equipped Vehicles only. Consult your state’s aftermarket converter regulations for details.
- **DIRECT-FIT DESIGN** – Direct-fit bolt-on replacement solution with OE-style hangers, brackets, routings and heat shields for easy installation that doesn’t require specialized fabrication and/or welding.
- **KEEPS CHECK ENGINE LIGHT OFF FOR EMISSIONS CODES** -- OE-style high-technology washcoat and optimal precious metal load delivers required reduction in tailpipe emissions to match vehicle application.
- **STRONG & DURABLE** – Features thick OE-style flanges, hangers & brackets for strength and durability.
- **OE-STYLE DESIGN** – Features aluminized heat shields when originally equipped, to match OE design, protecting the undercarriage from heat created by the converter.
- **BUY WITH CONFIDENCE** -- Backed by NAPA’s 25,000-mile/40,000-kilometer emissions & 5-year 50,000-mile/80,000-kilometer structural integrity warranty.
- Stainless Steel Body & Aluminized Body & Pipe Heat Shields For Durability.
- Thick OE-Style Flanges, Hangers & Brackets For Enhanced Strength.
- OE-Style Routing & Hanger Position For Easy Installation.
- 25,000-Mi Catalytic Performance & 5-Year/50,000-Mi Structural Integrity Warranty.
- Meets EPA Emissions Requirements. Not Legal For Sale In California.

## Specifications

| Specification                         | Details                        |
|---------------------------------------|--------------------------------|
| Inlet Size                            | 2 I.D. Pipe Connection         |
| Shape                                 | Round                          |
| Main Body Width                       | 4.125 in                       |
| Catalytic Converter Outlet Type       | Pipe Connection                |
| Inlet Count                           | Dual                           |
| VMRS Code                             | 043001030                      |
| Body Length                           | 8.000 in                       |
| Outlet Connection Type                | Pipe Connection                |
| Outlet Count                          | Dual                           |
| SDS Required                          | No                             |
| Catalytic Converter Inlet Type        | 2 Bolt Welded Flange           |
| Total Length                          | 36.250 in                      |
| Universal Or Specific Fit             | Specific                       |
| Body Shape                            | Round                          |
| Body Type                             | 4 in. Round                   |
| Inlet Connection Type                 | Welded Flange                  |
| Mounting Hardware Included            | No                             |
| Overall Length                        | 36.250 in                      |
| Material                              | Stainless Steel                |
| Brand                                 | NAPA                           |
| Body Width                            | 4.125                          |
| Body Material                         | Stainless Steel                |
| Outlet Inside Diameter                | 2.000 in                      |
| Body Height                           | 4.125                          |
| California Air Resources Board (CARB) Certified | No                   |
| Grade Type                            | Premium                        |

## Vehicle Fitment Guide

| Make  | Model | Year(s)       |
|-------|-------|---------------|
| Mazda | 3     | 2010 - 2013   |

### Warranty Information

| Warranty Available for Download |
| --- |
| [Warranty](https://assets.genpt.com/pdf/id/201167080) |