# MagnaFlow 50603 Heavy Metal Direct Fit Catalytic Converter (2.25" ID/2.25" OD) for 1997-2005 Lexus Gs300 and More

### Performance Overview

Magnaflow specializes in performance catalytic converter. They've spent over thirty years creating, developing, and improving on their technology to earn their reputation as being the global market leader. magnaflow's Heavy Metal catalytic converters use a combination of ceramic and metallic substrates as well as wall thickness specifically developed for your specific vehicle needs.

### Key Features

-   Brand: MagnaFlow
-   Part number: 50603
-   Product type: Heavy Metal Direct Fit Catalytic Converter (2.25" ID/2.25" OD)
-   Designed for compatible vehicle applications listed on this page

### Vehicle Fitment

-   1998 Lexus Gs300, Note: Base; 3.0L; 2.25"; 2.25"
-   1999 Lexus Gs300, Note: Base; 3.0L; 2.25"; 2.25"
-   2000 Lexus Gs300, Note: Base; 3.0L; 2.25"; 2.25"
-   2001 Lexus Gs300, Note: Base; 3.0L; 2.25"; 2.25"
-   2002 Lexus Gs300, Note: Base; 3.0L; 2.25"; 2.25"
-   2003 Lexus Gs300, Note: Base; 3.0L; 2.25"; 2.25"
-   2004 Lexus Gs300, Note: Base; 3.0L; 2.25"; 2.25"
-   2005 Lexus Gs300, Note: Base; 3.0L; 2.25"; 2.25"

### FAQ

**Will this fit my vehicle?**  
Please verify your year, make, model, position, and any fitment notes using the compatibility list above before purchase.

**What part number is this?**  
The listed part number is 50603.

**Is this product designed for direct replacement?**  
Yes. This product is intended to match compatible vehicle applications listed in the fitment section.

**Should I confirm fitment before ordering?**  
Yes. Always compare your original part, position, and vehicle details with the fitment chart before ordering.

### Common Searches

-   Heavy Metal Direct Fit Catalytic Converter (2.25" ID/2.25" OD) for Lexus Gs300
-   50603 fitment
-   MagnaFlow Heavy Metal Direct Fit Catalytic Converter (2.25" ID/2.25" OD)
-   1997 Lexus Gs300 Heavy Metal Direct Fit Catalytic Converter (2.25" ID/2.25" OD)

### Vehicle Fitment Table

Year

Make

Model

Position

Fitment Precision

Note

1998

Lexus

Gs300

Base; 3.0L; 2.25"; 2.25"

1999

Lexus

Gs300

Base; 3.0L; 2.25"; 2.25"

2000

Lexus

Gs300

Base; 3.0L; 2.25"; 2.25"

2001

Lexus

Gs300

Base; 3.0L; 2.25"; 2.25"

2002

Lexus

Gs300

Base; 3.0L; 2.25"; 2.25"

2003

Lexus

Gs300

Base; 3.0L; 2.25"; 2.25"

2004

Lexus

Gs300

Base; 3.0L; 2.25"; 2.25"

2005

Lexus

Gs300

Base; 3.0L; 2.25"; 2.25"

2001

Lexus

Is300

Base; 3.0L; 2.25"; 2.25"

2002

Lexus

Is300

Base, Sportcross; 3.0L; 2.25"; 2.25"

2003

Lexus

Is300

Base, Sportcross; 3.0L; 2.25"; 2.25"

2004

Lexus

Is300

Base, Sportcross; 3.0L; 2.25"; 2.25"

2005

Lexus

Is300

Base, Sportcross; 3.0L; 2.25"; 2.25"

1999

Lexus

Sc300

Base; 3.0L; 2.25"; 2.25"

2000

Lexus

Sc300

Base; 3.0L; 2.25"; 2.25"

1997

Toyota

Supra

Base, Twin Turbo; 3.0L; 2.25"; 2.25"

1998

Toyota

Supra

Base, Twin Turbo; 3.0L; 2.25"; 2.25"

## Details

- **Price:** 2040.15 CAD
- **Vendor:** MagnaFlow
- **Type:** Heavy Metal Direct Fit Catalytic Converter (2.25" ID/2.25" OD)
- **Tags:** 1997 Toyota Supra, 1998 Lexus Gs300, 1998 Toyota Supra, 1999 Lexus Gs300, 1999 Lexus Sc300, 2000 Lexus Gs300, 2000 Lexus Sc300, 2001 Lexus Gs300, 2001 Lexus Is300, 2002 Lexus Gs300, 2002 Lexus Is300, 2003 Lexus Gs300, 2003 Lexus Is300, 2004 Lexus Gs300, 2004 Lexus Is300, 2005 Lexus Gs300, 2005 Lexus Is300, 50603, Auto Parts, Automotive, Catalytic Converter, Direct Replacement, Exhaust Performance, Exhaust System, Heavy Metal Direct Fit Catalytic Converter (2.25" ID/2.25" OD), MagnaFlow, Magnaflow-50603, Muffler, Performance Exhaust, Performance Parts, Vehicle Fitment

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 2040.15 CAD | In stock |

## Images

- MagnaFlow 50603 Heavy Metal Direct Fit Catalytic Converter (2.25" ID/2.25" OD)

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/magnaflow-lexus-gs300-catalytic-converter-50603)
> Updated: 2026-07-16