Milltek Large Bore Downpipe - Audi SQ5 3.0TFSI V6 Turbo - SSXAU761

The Milltek Cat Back Large Bore Downpipe with Hi-Flow Sports Cat is a precision-engineered turbo-back component designed to optimize exhaust flow and reduce backpressure across a wide range of performance vehicles. This system pairs a 6.0" mandrel-bent T304L stainless steel downpipe with a high-flow catalytic converter (200 CPSI) to deliver measurable horsepower and torque gains while maintaining emissions compliance.

Constructed from T304L stainless steel with mandrel-bent tubing for smooth, unrestricted flow, this downpipe features a direct-fit design compatible with both OEM and Milltek cat-back exhaust systems. The hi-flow sports catalyst maintains environmental standards while maximizing scavenging efficiency, ideal for Stage 2+ ECU tuning. No modifications required for factory hanger fitment.

Technical Specifications:

• Material: T304L stainless steel, hand-finished
• Pipe Diameter: 6.0" (152.4mm) mandrel-bent
• Catalyst: 200 CPSI hi-flow sports cat
• Fitment: Compatible with OEM and Milltek cat-back systems
• Installation: Direct factory fitment, Stage 2 ECU software recommended

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

Specifications

• Off-road / competition use only. Not legal for use on public roads in the US.

Fitment

• Audi > SQ5 > 3.0TFSI V6 Turbo > 2017 and Later

• 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.