SLE Audi A4 & A5 B9 (2.0T TFSI) 2015–2019 Catless Downpipe

The SLE Catless Downpipe is built to improve exhaust flow and performance for the B9 Audi A4 and A5 equipped with the 2.0T TFSI engine. By removing the factory catalytic converter, this upgrade reduces backpressure, improves turbo response, and delivers a more aggressive exhaust tone — perfect for street or track use.

Crafted from T304 stainless steel, and TIG-welded with back-purged construction, it’s made to withstand the demands of high-boost applications. It installs as a direct bolt-on with no modifications required.

Product Features

• Catless design for maximum flow and performance
• T304 stainless steel for strength and corrosion resistance
• TIG-welded and back-purged for durability under boost
• Faster turbo spool and improved throttle response
• Louder, deeper exhaust tone
• Direct bolt-on fitment, no cutting or welding required

Vehicle Compatibility (2.0T TFSI Engine Only)

• Audi A4 B9 (2015–2019)
• Audi A5 B9 Coupe/Sportback (2015–2019)

Disclaimer: This product is intended for OFF-ROAD OR RACING USE ONLY. It 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).