Untd. Performance 3.5″ Catless Downpipe – VW Golf R Mk8 / Audi S3 8Y

Take your VW Golf R MK8 or Audi S3 8Y to the next level with the Untd. Performance 3.5″ Catless Downpipe, built to push the limits of your EA888 Gen 4 engine. With a massive 3.5” diameter and catless, free-flowing design, this downpipe delivers maximum performance gains, minimal turbo lag, and a savage exhaust note that turns your refined 2.0T into a full-on street weapon.

Key Features:

Oversized 3.5” Catless Design:
Bigger pipe. Better flow. The 3.5” diameter drastically reduces backpressure, allowing exhaust gases to escape quickly and efficiently. That means faster spool, more boost, and real horsepower and torque gains — especially when paired with a Stage 2 tune.

Boosted Turbo Efficiency:
This downpipe lets your turbo breathe. Turbo lag is cut down significantly, and power delivery becomes more immediate and aggressive. Ideal for drivers who want that “pinned-to-your-seat” feeling every time they punch it.

Raw, Aggressive Exhaust Note:
Your Golf R or S3 won’t just feel faster — it’ll sound like it too. Expect louder turbo spool, deep pops, and a motorsport-inspired growl that announces your presence. Catless means it’s not holding anything back.

Race-Ready Build Quality:
Made from premium stainless steel and TIG welded with precision, this downpipe is engineered to handle high-heat, high-boost abuse. Daily-driven or track-thrashed, it’s built to take it.

Bolt-On Installation:
No cutting, no drama. This downpipe is designed for direct bolt-on installation and fits seamlessly with factory or most aftermarket cat-back exhaust systems.

ECU Tune Required:
Due to the catless design, a Stage 2 ECU tune is required to avoid check engine lights and to ensure optimal AFRs, boost levels, and timing.

Whether you’re going all-in on performance or just want your turbo to finally breathe the way it was meant to, the Untd. Performance 3.5″ Catless Downpipe delivers sound, speed, and serious attitude.

Compatibility:

• VW Golf R MK8 (2022+)

• Audi S3 8Y (2022+)
  (Equipped with the 2.0L EA888 Gen 4 engine)

Time to let your EA888 Gen 4 rip.