Milltek Audi C7 Large Bore Downpipes with Hi-Flow Sports Catalysts – For Milltek Cat-Back – SSXAU554
Upgrade your Audi 4.0 TFSI V8 with the ultimate performance exhaust hardware. These Milltek large-bore 76 mm downpipes with 100-cell high-flow sports catalysts are engineered for Audi RS6 C7, RS7 C7, S6 C7 and S7 C7 owners seeking a serious exhaust upgrade, improved flow, faster turbo response and a harder-hitting V8 soundtrack. Designed to be used with a Milltek Sport cat-back system and intended for Stage 2 tuning with an ECU remap, this package is the proven choice for high-performance builds.
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Why choose these Milltek downpipes
- Large-bore 76 mm design to reduce back pressure and optimise exhaust gas flow on the 4.0 TFSI twin-turbo V8.
- 100 CPSI hi-flow sports catalysts to maintain emissions hardware while maximising performance potential.
- Ultra-durable semi-gloss black Cerakote coating on the downpipes for heat management and long-term protection.
- Developed and manufactured in the United Kingdom by Milltek Sport with over 32 years of exhaust engineering expertise.
- Perfect match for Stage 2 ECU remapped cars and must be fitted with a Milltek Sport cat-back system.
What’s included
- 1 x LH 76 mm Primary Cat Bypass Downpipe (fits LH turbo) – Cerakote Semi-Gloss Black Finish
- 1 x RH 76 mm Primary Cat Bypass Downpipe (fits RH turbo) – Cerakote Semi-Gloss Black Finish
- 1 x LH Secondary 100-CPSI Hi-Flow Sports Catalyst (under car)
- 1 x RH Secondary 100-CPSI Hi-Flow Sports Catalyst (under car)
Specifications
- Pipe diameter: 3.00 in 76.20 mm
- Coating: Cerakote Semi-Gloss Black on primary downpipes
- Configuration: Primary cat bypass downpipes plus secondary 100 CPSI sports catalysts
- For highly tuned cars and Stage 2 ECU remap setups
- Must be fitted with the Milltek Sport cat-back system
Compatibility
- Audi RS6 C7 4.0 TFSI biturbo quattro including Performance Edition 2013 onwards
- Audi RS7 Sportback 4.0 V8 TFSI biturbo including Performance Edition 2013 onwards
- Audi S6 C7 4.0 TFSI quattro 2012 onwards
- Audi S7 Sportback C7 4.0 TFSI quattro S tronic 2012 onwards
Search-friendly fitment terms: Audi RS6 C7 downpipe kit, RS7 C7 performance exhaust, S6 4.0T downpipes, S7 4.0T sports cats, C7 4.0TFSI exhaust upgrade, Milltek Sport cat-back compatible downpipes, 100 cell cat downpipes for Audi 4.0T.
Installation and tuning
- Requires a Stage 2 ECU remap.
- Must be installed with a Milltek Sport cat-back system.
- Professional fitting recommended. Nforcd offer expert installation in Warwickshire. Request a quote at Sales@nforcd.com.
Our experience and customer feedback
We have used this Milltek setup on multiple customer RS6 and RS7 builds, as well as S6 and S7 4.0 TFSI projects. Fitment quality, durability and sound are consistently praised. Customers choose these Milltek downpipes for the noticeable improvement in response and the authentic V8 tone that complements Stage 2 tuning.
Compatibility check before dispatch
We verify fitment prior to shipping. Provide your UK registration or the last 7 characters of your VIN at checkout and we will confirm compatibility for your exact Audi 4.0 TFSI C7 model.
Manufacturer
Milltek Sport. In-house UK engineering and production, with continuous development influenced by real-world motorsport feedback.
Part number
SSXAU554