Milltek Large Bore Downpipe - Audi RS3 8V 8Y & TTRS MK3 - SSXAU726

The Milltek Cat Back Large Bore Downpipe with Hi-Flow Sports Cat is engineered for direct fitment to Audi RS3 (8V/8Y) and TTRS MK3, delivering measurable gains in exhaust flow efficiency and power output. This component pairs seamlessly with both OEM and Milltek cat-back exhaust systems.

Constructed from T304L stainless steel with mandrel-bent 3" (76.2 mm) bore, this downpipe features a high-flow sports catalyst rated at 200 CPSI (cells per square inch) for optimal scavenging without sacrificing emissions compliance. Direct factory fitment requires no modification. Stage 2 ECU software recommended for full potential.

Fitment

• Audi RS3 Sedan (8V) and Sportback (8V)
• Audi RS3 Sedan (8Y) and Sportback (8Y)
• Audi TT RS MK3 (FV)
• Compatible with OEM and Milltek cat-back systems

This downpipe is developed in-house and tested to deliver repeatable power gains without compromise on longevity or fitment quality.

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

Specifications

• Pipe diameter: 76.2mm (3.00")
• Off-road / competition use only. Not legal for use on public roads in the US.

Fitment

• Audi > RS3 > Saloon/Sedan (8V MQB) > 2017 and Later
• Audi > RS3 > Saloon/Sedan (8Y MQB EVO) > 2022 and Later
• Audi > TT MK3 > TTRS 2.5TFSI Quattro > 2016 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.