OE Quality
60-Day Returns

Bosal 099-1665 Catalytic Converter - Rear
Overview of the Bosal BRExhaust Catalytic Converter
The Bosal BRExhaust Federal Direct-Fit Standard Load OBDII Catalytic Converter 099-1665 is designed specifically for Toyota Sienna models. This direct-fit catalytic converter meets federal and EPA compliance standards, ensuring proper emissions control and reliable performance.
- Direct-fit design for Toyota Sienna
- Stainless steel body and finish for durability
- Ceramic substrate for efficient catalytic conversion
- 2.5-inch main piping diameter
- Bolt-on inlet attachment for straightforward installation
- Includes clamp for secure mounting
- Standard load series compliant with OBDII regulations
Product Line Details: BRExhaust Federal Direct-Fit Standard Load OBDII Catalytic Converter
The BRExhaust Federal Direct-Fit Standard Load OBDII Catalytic Converter line by Bosal focuses on providing federal and EPA-compliant catalytic converters that are designed for direct replacement. This product line emphasizes standard load catalytic converters that meet emissions requirements without the need for modifications, making it suitable for vehicles like the Toyota Sienna that require OBDII compliance.
Technical Description and Features
This catalytic converter features a stainless steel body and finish, which offers resistance to corrosion and heat, extending the service life of the part. The ceramic substrate inside facilitates effective conversion of harmful exhaust gases into less harmful emissions. With an overall length of 20 inches and a 2.5-inch main piping diameter, it fits precisely within the exhaust system of compatible Toyota Sienna models. The bolt-on inlet attachment and included clamp simplify installation, ensuring a secure and proper fit without the need for welding or additional modifications. Note that this converter does not include an oxygen sensor location, so it is designed to work with existing sensor setups on the vehicle.
Applications and Problem Solving
- Replaces faulty or damaged catalytic converters on Toyota Sienna vehicles
- Restores proper emissions control to meet federal and EPA standards
- Helps resolve check engine light issues related to catalytic converter performance
- Improves exhaust flow and reduces harmful emissions
- Supports OBDII compliance for emissions testing and inspections
Installation Notes and Tips
Installation of the Bosal 099-1665 catalytic converter is straightforward due to its direct-fit design and bolt-on inlet attachment. It is recommended to verify compatibility with your specific Toyota Sienna model year before installation. Use the included clamp to secure the converter in place, and ensure all connections are tight to prevent exhaust leaks. Since this converter does not have an oxygen sensor location, retain the original sensor placement on the vehicle’s exhaust system.
Quality Assurance and Warranty
Bosal manufactures this catalytic converter with high-quality stainless steel materials and a ceramic substrate to meet federal emissions standards. The BRExhaust Federal Direct-Fit Standard Load OBDII Catalytic Converter line is engineered for durability and compliance. Warranty information is typically provided by the manufacturer and should be confirmed at the time of purchase.
| Brand | Bosal |
| Part Number | 099-1665 |
| Position | BRExhaust Federal Direct-Fit Standard Load OBDII Catalytic Converter, Rear |
| Mounting Hardware Included | Yes |
| Body Material | Stainless steel |
| Substrate Material | Ceramic |
| Overall Length | 20 |
| Air Tube Adaptable | No |
| Clamp Included | Yes |
| Converter Quantity | 1 |
| Finish | Stainless steel |
| Inlet Attachment | Bolt-on |
| Main Piping Diameter | 2.5 |
| Material | Stainless steel |
| Oxygen Sensor Location | None |
| Series | Standard load |
| Subtitle | Federal / epa compliant |
| Title | Brexhaust standard load federal / epa compliant direct-fit cataly |
| Type | Direct-fit |
This part fits 7 vehicles. Search below:
| Year | Make | Model | Drive Type | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2010 | Toyota | Sienna | FWD | 3.5L | V6 | N/A | BRExhaust Federal Direct-Fit Standard Load OBDII Catalytic Converter |
| 2009 | Toyota | Sienna | FWD | 3.5L | V6 | N/A | BRExhaust Federal Direct-Fit Standard Load OBDII Catalytic Converter |
| 2008 | Toyota | Sienna | FWD | 3.5L | V6 | N/A | BRExhaust Federal Direct-Fit Standard Load OBDII Catalytic Converter |
| 2007 | Toyota | Sienna | FWD | 3.5L | V6 | N/A | BRExhaust Federal Direct-Fit Standard Load OBDII Catalytic Converter |
| 2006 | Toyota | Sienna | FWD | 3.3L | V6 | N/A | BRExhaust Federal Direct-Fit Standard Load OBDII Catalytic Converter |
| 2005 | Toyota | Sienna | FWD | 3.3L | V6 | Rear | BRExhaust Federal Direct-Fit Standard Load OBDII Catalytic Converter |
| 2004 | Toyota | Sienna | FWD | 3.3L | V6 | Rear | BRExhaust Federal Direct-Fit Standard Load OBDII Catalytic Converter |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.