The ARM Motorsports Audi A3 / S3 8V Downpipe is engineered to maximize the performance of the EA888 Gen 3 2.0T engine. The factory downpipe restricts airflow and limits boost levels, preventing the vehicle from safely operating beyond a basic Stage 1 tune. Upgrading to the ARM downpipe significantly reduces backpressure, allowing the turbocharger to spool faster and sustain higher boost levels. When paired with proper tuning, drivers can experience gains of up to 20 awhp and 27 awtq along with an enhanced, more aggressive exhaust sound.

This downpipe is constructed from TIG-welded T304 stainless steel and designed for long-term durability. The three-piece modular configuration consists of an upper section, midpipe, and adapter, all connected using CNC-machined v-band flanges that ensure a secure, leak-free fit. A laser-cut mounting bracket and precision-machined mounting prongs guarantee an accurate alignment with factory mounting points.

The kit includes a reducer for direct compatibility with the OEM exhaust system and a 3-inch adapter for aftermarket cat-back setups. A stainless steel flex section between the turbo and midpipe is integrated to reduce mechanical strain on the turbocharger caused by chassis movement during acceleration, cornering, and braking. With all installation hardware included and backed by ARM Motorsports’ lifetime warranty against craftsmanship and fitment defects, this downpipe provides a reliable performance upgrade for any Audi A3 or S3 build.

Fitment:

• Volkswagen Golf R MK7, 2015–2020, 2.0T AWD
• Audi A3 8V, 2015–2020, 2.0T AWD
• Audi S3 8V, 2015–2020, 2.0T AWD