3" Stainless Steel Down Pipe with High Flow Cat for Subaru STi (2015+)
The Subaru STi is a great performance car with a cult following. Replace the restrictive factory STI turbo down pipe with the Empire Performance premium 3" stainless steel design, with high flowing catalytic converter. Improve the performance, and release the rumble from your Boxer engine!
Specifically designed for the Subaru STI 2015+ this system unleashes the performance that they should have had from the factory!
- 3" piping
- Bell mouth design
- 3x O2 sensor ports for easy installation
- High flow catalytic converter
- Corrosion resistant, polished stainless steel piping and components. Coated, corrosion resistant steel flanges
- TIG welded
- Mandrel Bent
- Gaskets and bolts included
This down pipe will significantly increase the flow and performance of your STI and as such we always recommend a tune after installation.