MilltekLarge Bore Downpipe HJS Hi-Flow Cat - NO CELFitment: VW Golf MK8 R / Audi S3 8Y

Overview

The Milltek Cat Back Large Bore Downpipe and Hi-Flow Sports Cat is a direct-fitment turbo-back component engineered for the VW Golf MK8 R and Audi S3 8Y (EA888 platform). This system pairs seamlessly with OEM or Milltek Cat-Back exhausts, delivering measurable gains in exhaust scavenging and engine efficiency.

Constructed from T304L stainless steel with mandrel-bent 3" (76.2 mm) bore tubing, the downpipe features a high-flow sports catalytic converter (200 CPSI) that balances emissions compliance with flow optimization. Hand-finished construction ensures OEM+ fitment quality without modification. The secondary catalyst design maintains backpressure management across the rev range while supporting dyno-proven performance gains.

Details

Fitment Notes & Compatibility

• VW Golf MK8 R (EA888 Gen 4)
• Audi S3 8Y (EA888 Gen 4)
• Compatible with OEM factory cat-back systems
• Direct compatibility with Milltek Cat-Back Exhausts
• No modification required for installation

Fits Milltek Cat-Back.

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

Fitment