OE Quality
60-Day Returns

MagnaFlow 5451446 Catalytic Converter - Rear
Overview of MagnaFlow Direct-Fit Catalytic Converter 5451446
The MagnaFlow Direct-Fit CALIFORNIA OBDII CONVERTERS catalytic converter 5451446 is engineered specifically for select Buick, GMC, and Saturn models. Designed to meet California emissions standards, this converter offers a direct-fit solution for the Buick Enclave, GMC Acadia, and Saturn Outlook, ensuring compatibility and reliable performance.
- Specific fit for Buick Enclave, GMC Acadia, and Saturn Outlook
- Constructed with durable stainless steel body and tube material
- Ceramic substrate for effective catalytic conversion
- Bolt-on inlet and outlet for straightforward installation
- Includes mounting hardware and gasket for secure fitment
- Overall length of 12.5 inches with 2-inch main piping diameter
- Direct-fit design compatible with California OBDII emissions systems
Product Line: Direct-Fit CALIFORNIA OBDII CONVERTERS
The Direct-Fit CALIFORNIA OBDII CONVERTERS line by MagnaFlow is tailored to meet stringent California emissions requirements while providing a direct replacement for factory catalytic converters. This product line focuses on precise fitment and compliance, making it suitable for vehicles requiring OBDII-compliant converters without modifications. Part number 5451446 is part of this line, ensuring it meets regulatory standards for the specified Buick, GMC, and Saturn models.
Detailed Product Description
This MagnaFlow catalytic converter features a stainless steel body and tube construction, providing corrosion resistance and durability under high-temperature conditions. The ceramic substrate efficiently facilitates the conversion of harmful exhaust gases into less harmful emissions. With a bolt-on inlet and outlet design, the converter allows for a straightforward installation process without the need for cutting or welding. The 12.5-inch overall length and 2-inch main piping diameter are designed to match factory specifications for a seamless fit.
Common Applications and Issues Addressed
- Replacement for failing or clogged catalytic converters on Buick Enclave, GMC Acadia, and Saturn Outlook
- Restores proper emissions control to meet California OBDII standards
- Resolves check engine light issues related to catalytic converter efficiency
- Improves exhaust flow and reduces harmful emissions
- Ensures compliance with state emissions inspections
Installation Notes and Tips
The MagnaFlow 5451446 catalytic converter is designed for direct bolt-on installation, matching factory inlet and outlet connections. It includes mounting hardware and a gasket to facilitate a secure and leak-free fit. No additional clamps or hangers are included, so verify existing hardware compatibility before installation. Professional installation is recommended to ensure proper torque specifications and to avoid exhaust leaks.
Quality Assurance and Warranty
MagnaFlow catalytic converters are manufactured to meet or exceed OEM standards for durability and emissions performance. This part is constructed with high-grade stainless steel and a ceramic substrate to ensure long service life. While specific warranty details are not provided here, MagnaFlow typically offers limited warranties on their catalytic converters covering defects in materials and workmanship.
| Brand | MagnaFlow |
| Part Number | 5451446 |
| Position | Direct-Fit CALIFORNIA OBDII CONVERTERS, Rear |
| Mounting Hardware Included | Yes |
| Universal Or Specific Fit | Specific |
| Grade Type | Regular |
| Tube Material | Stainless steel |
| Inlet Type | Bolt-on |
| Outlet Type | Bolt-on |
| Heat Shield Attached | No |
| Body Material | Stainless steel |
| Substrate Material | Ceramic |
| Overall Length | 12.5 |
| Air Tube Count | 0 |
| Sensor Port Count | 0 |
| Air Tube Adaptable | No |
| Clamp Included | No |
| Converter Quantity | 1 |
| Finish | Stainless steel |
| Gasket Included | Yes |
| Hangers Included | No |
| Heat Shield Material | None |
| Main Piping Diameter | 2 |
| Oxygen Sensor Location | None |
| Type | Direct-fit |
This part fits 7 vehicles. Search below:
| Year | Make | Model | Submodel | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2008 | Buick | Enclave | 3.6L | V6 | Rear | Certification Level : LEV2 LEV; CARB Executive Order D-193-143; Engine Family Number 8GMXT03.6151; Direct-Fit CALIFORNIA OBDII CONVERTERS | |
| 2008 | GMC | Acadia | 3.6L | V6 | Rear | Certification Level : LEV2 LEV; CARB Executive Order D-193-143; Engine Family Number 8GMXT03.6151; Direct-Fit CALIFORNIA OBDII CONVERTERS | |
| 2008 | Saturn | Outlook | XE | 3.6L | V6 | Rear | Certification Level : LEV2 LEV; CARB Executive Order D-193-143; Engine Family Number 8GMXT03.6151; Direct-Fit CALIFORNIA OBDII CONVERTERS |
| 2008 | Saturn | Outlook | XR | 3.6L | V6 | Rear | Certification Level : LEV2 LEV; CARB Executive Order D-193-143; Engine Family Number 8GMXT03.6151; Direct-Fit CALIFORNIA OBDII CONVERTERS |
| 2007 | GMC | Acadia | 3.6L | V6 | Rear | Certification Level : LEV2 LEV; CARB Executive Order D-193-143; Engine Family Number 7GMXT03.6151; Direct-Fit CALIFORNIA OBDII CONVERTERS | |
| 2007 | Saturn | Outlook | 3.6L | V6 | Rear | Certification Level : LEV2 LEV; Dual Exhaust; CARB Executive Order D-193-143; Engine Family Number 7GMXT03.6151; Direct-Fit CALIFORNIA OBDII CONVERTERS | |
| 2007 | Saturn | Outlook | 3.6L | V6 | Rear | Certification Level : LEV2 LEV; Single Exhaust; CARB Executive Order D-193-143; Engine Family Number 7GMXT03.6151; Direct-Fit CALIFORNIA OBDII CONVERTERS |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.