Milltek Turbo Downpipe Audi A3 8L / Seat Leon 1M / Skoda Octavia 1U / VW Bora, Golf Mk4 - Hi-Flow Cat - for Stock Line

Milltek Sport Downpipe with High-Flow Catalytic Converter for Audi A3 8L / Seat Leon 1M Cupra / Skoda Octavia 1U RS ...

This Milltek Sport downpipe with high-flow catalytic converter for Audi A3 8L / Seat Leon 1M Cupra / Skoda Octavia 1U RS ... frees up exhaust flow right after the turbo while keeping a high-flow sport catalytic converter: the best compromise between performance and emissions control.

Technical specifications

• Milltek part number: SSXVW393
• Part type: Downpipe with high-flow catalytic converter
• Detail: Large diameter downpipe with high-flow sport catalytic converter
• Tube diameter: 76.2 mm (3 inches)
• Fitting information: ECU remap - Fits stock exhaust line
• Material: aerospace-grade stainless steel
• Manufacturer: Milltek Sport (United Kingdom)

Compatible vehicles

• Audi A3 8L 1.8T 150-180 hp (2WD, 3 and 5 Doors, 1996-2004)
• Seat Leon 1M Cupra 1.8T 180 hp (Sport and Cupra, 2000-2005)
• Skoda Octavia 1U RS 1.8T 150-180 hp (1998-2006)
• Volkswagen Bora 1.8T (2WD, 2000-2005)
• Volkswagen Golf Mk4 Mk4 337 Anniversary 180hp (2002-2004)
• Volkswagen Golf Mk4 GTI 1.8T (1998-2004)

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

Most frequently asked questions

• Is an ECU remap required? Yes. A matching ECU map (Stage 2) is essential to get the full benefit and avoid a check engine light related to the O2 sensors. It is the question buyers ask most often, and the answer is always the same.
• 200-cell high-flow catalytic converter: it keeps real emissions control while flowing much more than the original. It is the choice of tuners who want to keep their vehicles clean.
• Exhaust compatibility: this downpipe connects to the stock exhaust line.

Why choose Milltek Sport?

Milltek Sport designs and manufactures its exhausts in England, using mandrel-bent tubes to preserve the inner diameter and a fit developed specifically for each vehicle. The result: a clean installation with no modification needed, and a sound tuned to remain pleasant for everyday driving.

Further reading

• Downpipe: decat or high-flow catalytic converter for your Stage 2?