Jeep Cherokee XJ & Grand Cherokee ZJ 4.0L 1994–2001 – Wildcat Headers / Extractors 409 Stainless Steel (WILD091SS)

Wildcat 409 stainless steel performance headers designed for Jeep Cherokee XJ (1994–2001) and Grand Cherokee ZJ (1994–1998) fitted with the 4.0L inline-6 (AMC 242 / 4.0 PowerTech I-6) petrol engine. Featuring an interference design for smooth exhaust scavenging and increased mid-range torque, these extractors deliver improved flow, throttle response, and durability under high-heat conditions. Proudly Australian made by Genie Performance Exhausts, constructed from 409 stainless steel for enhanced corrosion resistance and long service life — ideal for street or off-road use.

Key Features

• Part Number: WILD091SS
• Application: Jeep Cherokee XJ 1994–2001 / Grand Cherokee ZJ 1994–1998 4.0L I6
• Engine Code: AMC 242 / 4.0 PowerTech I-6
• Design: Interference design for performance and torque
• Primary Pipes: 1.50"
• Secondary Pipes: 2.00"
• Outlet Size: 2.50"
• Material: 409 stainless steel
• Finish: Raw brushed stainless – ready for installation or coating
• Fitment: Direct bolt-on replacement for factory manifold
• Australian made quality
• These headers are now made to order and may take 4-6 weeks

Why 409 Stainless Steel?

409 stainless steel is specifically engineered for exhaust systems — offering greater heat resistance and lower thermal expansion compared to 304 stainless steel, which helps maintain a consistent seal and reduces fatigue cracking. It’s magnetic, highly durable under temperature cycling, and perfect for long-term reliability in Australian road and off-road environments.

Fitment & Application

Suits Jeep Cherokee XJ (1994–2001) and Jeep Grand Cherokee ZJ (1994–1998) with the 4.0L inline-6 petrol engine. Designed to enhance exhaust flow while maintaining strength and reliability for daily driving, off-road, and towing applications.

What’s Included

• 1 × Set of Wildcat Headers (WILD091SS) – 409 stainless steel
• HTG549 Base Gasket with bolts

Recommended With

• DSF804G Exhaust Gasket – for header to head fitment
• WD40 or Lubricant – for easier removal and installation
• High-Temp Sealant – optional for additional leak protection

Installation Tips

Lubricate nuts, bolts, and threads with WD40 or similar before installation. Ensure proper gasket alignment before tightening to prevent leaks. Re-tension bolts after the first heat cycle.

Warranty

24-Month Warranty – Covers manufacturing and weld defects only. Incorrect fitment, modification, or poor installation practices are not covered.

Customer Support

For phone orders, advice, or part enquiries – contact us:

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