SLE Audi S4 S5 B9 (3.0T) 2017+ Downpipe

SLE Audi S4 & S5 B9 (3.0T) 2017+ Downpipe

The SLE Downpipe is engineered to significantly improve exhaust flow and turbocharger efficiency for the B9 Audi S4 and S5 equipped with the 3.0T V6 turbo engine. By replacing the restrictive factory downpipe, this upgrade delivers faster turbo spool, increased throttle response, and a noticeably more aggressive exhaust tone.

Built from T304 stainless steel, and featuring TIG-welded, back-purged construction, this downpipe is made to handle the demands of high-performance driving. It’s a direct bolt-on upgrade with no modifications required, ideal for both street and track setups.

Product Features

• Free-flowing, high-performance design
• T304 stainless steel for strength and corrosion resistance
• TIG-welded and back-purged for long-term reliability
• Improved throttle response and turbo spool
• Enhanced, aggressive exhaust sound
• Direct bolt-on fitment, no cutting or welding needed

Vehicle Compatibility (3.0T V6 Turbo Engine Only)

• Audi S4 B9 (2017–Present)
• Audi S5 B9 Coupe, Sportback & Cabriolet (2017–Present)

Disclaimer: This product is intended for OFF-ROAD OR RACING USE ONLY and is not legal for use on public roads in vehicles subject to emissions regulations. A stage 2 ECU tune is required to prevent a check engine light (CEL).