Catalytic Converter for Jeep Wrangler (1997-1999) 2.5L

Direct-Fit Catalytic Converter for 1997-1999 Jeep Wrangler

Direct Replacement: Replaces degraded factory emissions equipment to restore exhaust velocity and clear catalyst efficiency fault codes on 2.5L trail rigs.

The Stock Wrangler TJ Emissions Restriction

Over decades of severe heat cycles and trail vibration, OEM catalytic converters suffer structural substrate breakdown, washcoat sintering, and internal carbon loading. On the AMC 2.5L inline-four, this degradation causes elevated exhaust backpressure, strangling low-end torque, elevating cylinder head temperatures, and triggering recurring check engine lights.

The Engineering Solution

Constructed with a heavy-gauge stainless steel outer shell and an efficient ceramic honeycomb substrate, this direct-fit converter restores balanced backpressure and proper exhaust scavenging. Precision-welded OE-style flanges and integrated oxygen sensor ports eliminate exhaust gas leaks, bolting directly to factory downpipe and tailpipe mounts without cutting or custom fabrication.

Technical Specifications

Compatibility

• 1997 Jeep Wrangler TJ (2.5L L4 Gas)
• 1998 Jeep Wrangler TJ (2.5L L4 Gas)
• 1999 Jeep Wrangler TJ (2.5L L4 Gas)

The Jeep Trail Standard

Built to withstand the torsional chassis flex, high vibration, and temperature shock of deep water crossings, this direct-replacement assembly provides durable emissions treatment and uninterrupted exhaust flow across demanding off-road terrain.