Cat-back Milltek Seat Leon 5F - ECE Homologated - No Primary Muffler - Resonated with Rear Muffler - Polished Quad GT80 Tips

Milltek Sport exhaust system for Seat Leon 5F Cupra

Does the stock sound of your Seat Leon 5F Cupra leave you wanting more? This Milltek Sport stainless steel exhaust system is the option owners ask for most often: more presence, a genuine sound signature and build quality that lasts.

Technical specifications

• Milltek reference: SSXSE166
• Part type: Exhaust system
• Configuration: resonated (with resonator), valveless
• Details: ECE homologated, no primary muffler, with resonator and rear muffler, polished stainless steel quad GT80 tips
• Tube diameter: 76.2 mm (3 inches)
• Outlets: 4 GT80 outlets, 80 mm each
• Tip finish: polished stainless steel
• Fitting information: Valveless
• Material: aerospace-grade stainless steel
• Homologation: ECE / EC homologated
• Manufacturer: Milltek Sport (United Kingdom)

Compatible vehicles

• Seat Leon 5F Cupra 2.0 Tsi 280-290 hp (2014-2017, no DPF)

Not sure about compatibility with your vehicle? Contact us with your VIN before ordering.

Our most frequently asked questions

• Highway drone? It's the number one concern on forums. This version keeps a resonator: the sound stays full under acceleration, while the system remains mellow at steady cruising speed, ideal for everyday driving.
• Valveless: the system stays vocal at all times. On a vehicle fitted with factory exhaust valves, a valve delete kit may be needed to avoid a warning light (see fitting information).
• Homologation: this system is homologated (ECE / EC), a real advantage for driving with peace of mind and passing the contrôle technique.
• Fitting: the system uses the original mounting points. A well-equipped repair shop usually completes the fitting in one to two hours.

Why choose Milltek Sport?

A benchmark among European tuners, Milltek Sport develops each system directly on the vehicle. Mandrel bends, careful welds and aerospace-grade stainless steel ensure a system that lasts and sounds right.

Further reading

• Resonated or non-resonated cat-back exhaust: which one for your car?
• Exhaust valves: how they work and should you keep them?
• Exhaust systems and the French technical inspection (contrôle technique)