4-1 Exhaust Header with Downpipe Fit for 1991 1993-1995 Jeep Wrangler YJ 2.5L L4

Stainless steel exhaust header with downpipe designed for compatible Jeep Wrangler YJ models equipped with the 2.5L L4 engine. Featuring a 4-1 piping configuration, 1.50 in inlet, 2 in outlet, and one O2 sensor location, this header is designed around the specified Wrangler YJ 2.5L exhaust layout. The tubular header configuration provides a more direct exhaust path while retaining compatibility with the listed applications.

Vehicle Fitment

• Fit for compatible 1991 Jeep Wrangler YJ with 2.5L L4 engine
• Fit for compatible 1993-1995 Jeep Wrangler YJ with 2.5L L4 engine
• Engine Compatibility: 2.5L L4 / Inline-4
• Chassis Compatibility: Jeep Wrangler YJ
• Does Not Fit 1992 Jeep Wrangler 2.5L
• Does Not Fit 1992 Jeep Wrangler Base Sport Utility 2-Door 2.5L
• Please verify the exact vehicle year, model, trim, engine displacement, O2 sensor configuration, and existing exhaust system before purchasing
• Vehicles with engine swaps, aftermarket cylinder heads, modified exhaust systems, custom motor mounts, or previous drivetrain modifications may require additional fitment verification

Product Highlights

• Wrangler YJ 2.5L Compatibility – Designed for compatible Jeep Wrangler YJ applications equipped with the 2.5L four-cylinder engine
• 4-1 Header Design – Four primary exhaust paths merge into a single outlet for the specified engine configuration
• 1.50 in Inlet – Features the specified 1.5 in inlet size for compatible applications
• 2 in Outlet – Uses a 2 in exhaust outlet for connection to the compatible downstream exhaust system
• Single O2 Sensor Location – Features one O2 sensor provision for the specified vehicle configuration
• Downpipe Configuration – Supplied as a header and downpipe configuration for the listed Wrangler YJ application
• Stainless Steel Construction – Stainless steel construction provides durability for exhaust-system use
• Mirror-Polished Finish – Polished stainless steel surface provides a clean finished appearance
• Tubular Header Layout – Designed to provide a smoother exhaust path compared with a compact cast exhaust manifold configuration

Product Specifications

• Product Type: Exhaust Header with Downpipe
• Vehicle Make: Jeep
• Vehicle Model: Wrangler YJ
• Compatible Vehicle Years: 1991 / 1993 / 1994 / 1995
• Excluded Vehicle Year: 1992
• Engine Type: L4 / Inline-4
• Engine Compatibility: 2.5L
• Header Configuration: 4-1
• Inlet Size: 1.50 in
• Outlet Size: 2 in
• O2 Sensor Locations: 1
• Material: Stainless Steel
• Surface Finish: Mirror Polished

Package Includes

• 1 × Exhaust Header Assembly
• 1 × Downpipe

Installation Notes

• Please verify the exact vehicle year, model, trim, and engine before purchasing
• Designed for compatible Jeep Wrangler YJ models equipped with the 2.5L L4 engine
• 1992 Jeep Wrangler 2.5L applications are excluded
• Confirm cylinder-head flange alignment, O2 sensor location, steering clearance, transmission clearance, frame clearance, and downstream exhaust connection before installation
• Verify that the vehicle uses the specified single O2 sensor configuration before installation
• Vehicles with engine swaps, aftermarket exhaust components, custom motor mounts, or previous exhaust modifications may have different clearance requirements
• Source information describes the header as a direct bolt-on design for compatible applications
• Additional exhaust adjustment may be required depending on the condition and configuration of the existing exhaust system
• Professional installation is recommended