Walker 16571 Catalytic Converter - Front Left or Front Right

Overview of Walker EPA Catalytic Converter 16571

The Walker EPA Catalytic Converter 16571 is designed specifically for select Lexus models, including the GS430, LS430, and SC430 from 2001 to 2010. This direct fit catalytic converter offers a reliable replacement option for maintaining your vehicle's exhaust system performance.

• Brand: Walker
• Brand Line: EPA
• Part Number: 16571
• Category: Exhaust > Catalytic Converter
• Fitment: Direct fit for Lexus GS430, LS430, SC430 (2001-2010)
• Body Shape: Round
• Body Material: Stainless steel and steel construction
• Dimensions: 4" height, 4" width, 5.5" length (body); 10" overall length
• Inlet/Outlet: Single inlet and outlet with 3 bolt welded flange connection
• Converter Position: Front
• Grade Type: Regular
• Mounting Hardware: Not included
• CARB Certified: No

Walker EPA Product Line Details

The EPA line from Walker focuses on providing catalytic converters that meet Environmental Protection Agency standards for emissions control. This product line is engineered to offer a specific fit and function for targeted vehicle applications, such as the Lexus GS430, LS430, and SC430. The EPA series balances regulatory compliance with durable construction, using stainless steel materials to resist corrosion and ensure longevity.

Product Features and Specifications

This catalytic converter features a round body shape constructed from a combination of stainless steel and steel, providing durability and resistance to exhaust system heat and corrosion. The unit measures 4 inches in height and width, with a 5.5-inch body length and an overall length of 10 inches. It includes a single inlet and outlet, both utilizing a 3 bolt welded flange connection for a secure and direct fit installation at the front converter position.

Common Applications and Problem Solving

• Replacement for damaged or clogged catalytic converters on Lexus GS430, LS430, and SC430 models (2001-2010)
• Restores proper exhaust flow and emissions control
• Helps resolve check engine light issues related to catalytic converter failure
• Improves vehicle emissions compliance (EPA standards)
• Addresses exhaust leaks or rattling noises from worn converters

Installation Notes and Tips

This catalytic converter is designed for direct fit installation, matching the original equipment specifications for the listed Lexus models. It requires a 3 bolt welded flange connection at the inlet, so ensure compatibility with your vehicle’s exhaust flange. Mounting hardware is not included, so retain or source necessary bolts and gaskets separately. Professional installation is recommended to ensure proper sealing and alignment.

Quality Assurance and Warranty

Walker’s EPA catalytic converters are manufactured to meet EPA emissions standards and are constructed with durable stainless steel materials for extended service life. While this part is not CARB certified, it is engineered for reliable performance on compatible Lexus models. Warranty details should be confirmed with the supplier or manufacturer, as they may vary.