Ford Falcon XR–XE X-Pipe Kit (89mm / 3.50") – Custom Mandrel Bent 409 Stainless Steel

The X-PIPE-89-409SS X-pipe assembly is a premium stainless-steel crossover designed and manufactured for high-performance Ford Falcon and Fairlane XR–XE applications. Each unit is custom made to order, machined in-store, and TIG welded for strength, precision, and long-term durability.

Key Specifications

• Part Number: X-PIPE-89-409SS
• Pipe Size: 3.50" (89mm)
• Material: 409-grade stainless steel
• Finish: Raw stainless
• Fitment: Ford Falcon XR–XE Sedan / Coupe / Wagon / Ute / Fairlane
• Construction: TIG welded, mandrel bent, precision cut
• Made To Order: Yes – individually fabricated per order

Fitment & Installation

• Custom made to order – front bends supplied cut-to-length for your application
• Due to header outlet positions, gearbox variations, and engine mount differences, bends from the X-pipe to the headers are supplied separately for adaptation
• X-pipe inlets are expanded I.D. to allow slip-fit pipes from headers for easy alignment
• Welding required at header outlets and X-pipe inlets (easily MIG welded)

What’s Included

• 3.50" X-pipe assembly (409 stainless steel)
• Front bends (supplied cut-to-length)
• Mounting hardware as required

Recommended With

• Pacemaker Headers – PH4095
• Pacemaker Headers – PH4095-2
• Pacemaker Headers – PH4080
• Mounting Brackets – FDB008 / FDB001

Why Our X-Pipes Stand Out

Unlike generic stamped designs, our X-pipes are developed in-house in collaboration with a drag racing driver and built using a long merge crossover design. This geometry promotes exhaust pulse scavenging by allowing pressure waves to transfer across the crossover, helping draw exhaust gases from the opposite bank.

The result is a measurable reduction in static pressure across the merge section, improved exhaust gas velocity, and more efficient cylinder evacuation. This contributes to stronger mid-range torque, smoother power delivery, and improved throttle response without introducing restriction.

X-Pipe vs H-Pipe

• H-Pipe: Equalises pressure between banks for a deeper exhaust note.
• X-Pipe: Equalises pressure while increasing exhaust gas velocity and scavenging efficiency, improving torque and overall engine performance.

Installation Tips

• Ensure pipes are aligned correctly before final welding or clamping
• For best results, position the X-pipe where exhaust gases remain hot and fast-moving

Frequently Asked Questions

• Does this create back pressure?
  No – this design reduces restriction while improving scavenging. Some customers report lower pressure readings after the X-pipe due to improved flow efficiency.
• What does “pressure drop after the X-pipe” mean?
  A lower pressure reading after the merge indicates improved exhaust flow and pulse scavenging, not a restriction. This is a characteristic of a properly designed X-pipe.
• Is this better than a standard X-pipe?
  Yes – the long merge design avoids the sharp choke points found in stamped X-pipes, maintaining flow area and reducing turbulence.

Customer Support

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