【AS】Catless Downpipe

The catalyst-free straight-through design completely eliminates the source of back pressure, allowing exhaust gases to exit the turbo directly with minimal resistance. This is the most direct way to maximize turbo efficiency and increase high-RPM power.

For best results, use with ECU tuning. You will notice a significant increase in turbo boost pressure build-up speed, more linear high-RPM power, and a more aggressive exhaust note and turbo sound.

▌ Product Features
- Fully straight-through design, minimizing back pressure
- Made of 304 stainless steel, high temperature and corrosion resistant
- Includes O2 sensor bung
- Direct replacement for the original downpipe
- Best results when paired with ECU tuning