Milltek Non-Resonated Cat-Back Exhaust - VW Golf MK4 337-Single GT100 Tips - SSXVW150

The Milltek Non-Resonated Cat-Back Exhaust System is engineered specifically for the Volkswagen Golf MK4 337 Anniversary (180 bhp). This is a direct factory replacement that bolts to OEM hangers with no modification required.

Constructed from T304L stainless steel and mandrel-bent throughout, the system features a 2.50" primary pipe diameter and CNC-formed GT100 single exit trim. The non-resonated design eliminates the OE resonance chamber, delivering a pronounced, full-throttle exhaust character without drone at cruise. Dyno-tested to support gains across the rev range while maintaining street-legal operation.

Fitment & Specifications

• Direct fit: VW Golf MK4 337 Anniversary (2003-2004, 180 bhp)
• Pipe diameter: 2.50" / 63.5 mm (mandrel-bent)
• Material: T304L stainless steel, hand-finished
• Configuration: Non-resonated (louder tone, track-focused)
• Exit: Single GT100 polished trim
• Installation: OEM hangers and mounting points-no cutting or welding

Every system is dyno-proven and designed for real-world fitment and sound engineering, not just volume.

Designed and manufactured in the UK with 40+ years of performance exhaust heritage. Tested at the Nurburgring.

Specifications

• Pipe diameter: 63.5mm (2.50")
• Fitting time: 1.5 to 2 hours, including removing the factory system

Fitment

• Volkswagen > Golf > MK4 337 Anniversary > 2002 to 2004

• Free US shipping on orders over $250.
• Free pickup at our Dallas shop, usually ready within 24 hours.
• Unused parts can be returned within 30 days. Tunes, opened electronics, merch and installed parts are final sale.
• Want it installed? Book the install at thegbmotors.com.

Full details are on our shipping and returns page.