Magnaflow Direct-Fit Catalytic Converter

2004–2006 Scion xB Base 1.5L L4

4481262

Overview:

The Magnaflow Direct-Fit Catalytic Converter is a high-quality replacement part designed specifically for the 2004 to 2006 Scion xB with the 1.5L L4 engine. Engineered to meet or exceed California Air Resource Board (CARB) requirements, this California Grade converter helps keep your vehicle’s check engine light off by ensuring proper emissions control. Ideal for daily drivers and enthusiasts seeking a reliable, emissions-compliant solution, it delivers OEM-level fitment and performance without compromise.

With its durable construction and precise engineering, this catalytic converter maintains factory performance and fuel efficiency while providing long-lasting service life. It is a trusted choice for those who want a direct replacement that fits perfectly and functions like the original equipment.

Key Features:

This Magnaflow catalytic converter combines advanced design and quality materials to provide a dependable, efficient emissions solution for your Scion xB.

• Constructed from high-strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and durability
• Mandrel-bent tubing preserves OEM-like design and geometry, ensuring smooth exhaust flow for optimal fuel economy and engine operation
• Replicates the original equipment spun body design with a single laser fusion weld to minimize the risk of leaks
• Compact, low-mass design enhances thermal efficiency for improved catalytic performance
• Includes Torca AccuSeal® exhaust clamps that provide a full 360-degree equally distributed clamping force to prevent pipe distortion and maintain a complete seal
• Durable 308 stainless steel MIG welds ensure long-lasting structural integrity
• Tested and verified using state-of-the-art 3D scanning technology for precise fit and function
• Designed to interchange with OEM parts 17410-21572 and 17410-21570, among others
• Essential gaskets and hardware included to simplify installation and reduce the chance of leaks

Construction & Design:

This catalytic converter is expertly crafted to replicate OEM flow dynamics, maintaining factory performance and fuel efficiency. The use of mandrel-bent tubing ensures that exhaust gases flow smoothly without restriction, supporting peak engine operation. The spun body design, combined with a single laser fusion weld, greatly reduces the possibility of leaks compared to conventional welds. Additionally, the compact and low-mass construction improves thermal efficiency, allowing the converter to reach optimal operating temperatures faster for effective emissions control.

Manufactured from corrosion-resistant stainless steel, this converter is built to withstand harsh conditions and provide maximum service life. The inclusion of Torca AccuSeal® clamps ensures a secure, distortion-free connection that maintains serviceability over time.

Installation & Fitment:

This direct-fit catalytic converter is designed for easy installation on the 2004–2006 Scion xB Base model with the 1.5L L4 engine. It installs using factory mounting points and requires no cutting, welding, or special tuning, making it a straightforward replacement for your vehicle’s original converter.

• No cutting, drilling, or welding required
• Uses included gaskets and hardware to ensure a proper, leak-free seal
• Fits precisely to maintain OEM exhaust geometry and performance

What's Included:

• Magnaflow direct-fit catalytic converter
• Essential gaskets and hardware for installation
• Torca AccuSeal® exhaust clamps for secure sealing

Emissions Note

This catalytic converter is CARB compliant and legal for sale and use in all 50 states, including California, Colorado, New York, and Maine. It meets or exceeds California Air Resource Board requirements and has undergone additional testing to comply with CARB guidelines. Installation is permitted only if the vehicle’s Executive Order (EO) number and Engine Family Number (EFN) appear in this converter’s CARB Executive Order, ensuring legal use in CARB-restricted states for the listed vehicle applications.

MagnaFlow is a performance exhaust manufacturer best known for cat‑back and axle‑back systems, mufflers, and catalytic converters engineered for quality sound and improved flow. Their vehicle-specific exhaust options span muscle, import, and truck applications—making MagnaFlow a staple upgrade when you want a deeper tone, cleaner fitment, and a proven performance-focused exhaust setup.