DPF Back Milltek Land Rover Defender L663 OCTA P635 2025 - No Primary Muffler - Quad GT100 Blued Titanium Outlets

DPF-back Milltek Sport Exhaust for Land Rover Defender L663

Is the original sound of your Land Rover Defender L663 leaving you wanting more? This stainless steel Milltek Sport DPF-back exhaust is the most requested upgrade among owners: more presence, a real sound signature and build quality that lasts.

Technical specifications

• Milltek part number: SSXLR266
• Part type: DPF-back exhaust
• Configuration: with valves
• Details: No primary muffler, quad GT100 outlets in blued titanium
• Pipe diameter: 80 mm
• Outlets: 4 GT100 outlets, 100 mm
• Tip finish: blued titanium (heat-tinted effect)
• Fitting information: With valves
• Material: aerospace-grade stainless steel
• Manufacturer: Milltek Sport (UK)

Compatible vehicles

• Land Rover Defender L663 OCTA P635 4.4 V8 BiTurbo 635 hp (Chassis 110, 2025, with DPF)

Not sure whether it fits your vehicle? Contact us with your chassis number (VIN) before ordering.

Our most frequently asked questions

• What about the neighbors in the morning? The valves are controlled as on the original: the system stays closed and quiet at startup or in comfort mode, and fully opens in sport mode.
• Fitting: the exhaust uses the original mounting points. A workshop equipped for the job typically fits it in one to two hours.

Why choose Milltek Sport?

What owners mention most often in feedback: fit quality and a deep sound that is present but never harsh. That is the hallmark of Milltek Sport, a British manufacturer specializing in stainless steel exhausts.

Going further

• Exhaust valves: how they work and should you keep them?