49-State Direct-Fit Catalytic Converter: Designed as a vehicle-specific replacement for straightforward installation and OE-style fitment.
Restores Emissions System Performance: Helps maintain proper exhaust treatment and emissions control functionality while supporting efficient engine operation.
Stainless Steel Construction: Manufactured from corrosion-resistant stainless steel for long-lasting durability and reliability.
Optimized Exhaust Flow Design: Engineered to support proper exhaust system performance and maintain factory drivability characteristics.
Jeep-Specific Application: Designed for 1987–1990 Jeep Wrangler YJ models equipped with the 4.2L inline-six engine.
CARB Notice
- Legal in California, or other states adopting California emissions standards, only for racing vehicles that may never be used, registered or licensed for use, upon a highway. Can not be shipped to California residents.
Restore the emissions and exhaust system performance of your classic Wrangler with the MagnaFlow 49-State Direct-Fit Catalytic Converter. Designed specifically for 1987–1990 Jeep Wrangler YJ models equipped with the 4.2L engine, this direct-fit replacement provides an OE-style solution for replacing a worn, damaged, or restricted catalytic converter while maintaining proper fitment and functionality.
Built with MagnaFlow's commitment to quality, this converter features durable stainless steel construction engineered to resist corrosion and withstand years of exposure to extreme exhaust temperatures and harsh driving conditions. Its direct-fit design helps simplify installation by matching factory exhaust routing and connection points, while the high-quality catalyst supports efficient emissions control and exhaust flow. Whether you're repairing an aging exhaust system or maintaining a restoration project, the MagnaFlow 49-State Direct-Fit Catalytic Converter delivers dependable performance, durability, and factory-style operation.
- Engine Size: 4.2L 258ci I-6
- Shipping Weight: 10lb
- Shipping Dimensions: 32in x 8in x 7in (L x W x H)
Jeep Wrangler (YJ)
- 1990 Jeep Wrangler (YJ)
- 1989 Jeep Wrangler (YJ)
- 1988 Jeep Wrangler (YJ)
- 1987 Jeep Wrangler (YJ)
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