Milltek Hi-Flow Sports Cat - VW Golf MK4 R32 - SSXVW073

The Milltek Cat Back Hi-Flow Sports Cat is a T304L stainless steel secondary catalytic converter engineered for the VW Golf MK4 R32. Direct factory fitment with OEM+ integration—no modification required. Mandrel-bent construction optimizes exhaust scavenging for measurable dyno gains in horsepower and torque.

Hand-finished T304L stainless steel with 1.87" (47.62 mm) bore diameter. CNC-formed collector for precise flow dynamics. Requires Milltek Cat-Back system for complete fitment. Stage 2 ECU software recommended to unlock full performance potential. Emissions compliant high-flow design maintains environmental standards while delivering improved power delivery across the rev range.

• T304L stainless steel construction—hand-finished for durability
• Mandrel-bent piping for optimized exhaust scavenging
• Direct fitment: VW Golf MK4 R32 with OEM hangers
• Fits Milltek Cat-Back systems only
• 1.87" bore diameter for enhanced flow
• Engineered tone character through precise resonance tuning

This hi-flow sports cat is precision-manufactured in T304L stainless with the same attention to detail as our complete systems—tested for fitment accuracy and acoustic performance.

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

Specifications

• Pipe diameter: 47.62mm (1.87")
• Off-road / competition use only. Not legal for use on public roads in the US.

Fitment

• Volkswagen > Golf > MK4 R32 3.2 V6 > 2002 to 2005

• 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.